Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura said that the gṛhastha āśrama, or the status of family life, is a sort of concession for sense gratification. Therefore a gṛhastha should not falsely adopt the title gosvāmī. The ISKCON movement has never conferred the title gosvāmī upon a householder. Although all the sannyāsīs we have initiated in ISKCON are young, we have awarded them the titles of the renounced order of life, svāmī and gosvāmī, because they have completely dedicated their lives to preach the cult of Śrī Caitanya Mahāprabhu. Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura mentions that not only do the householder caste gosvāmīs disrespect the title gosvāmī, but also, following the principles of the smārta Raghunandana, they exhibit great foolishness by burning a straw image of Advaita Ācārya in a śrāddha ceremony, thus acting like Rākṣasas and disrespecting the Hari-bhakti-vilāsa, which is the guide for Vaiṣṇavas. Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura says that sometimes these smārta caste gosvāmīs write books on Vaiṣṇava philosophy or commentaries on the original scriptures, but a pure devotee should cautiously avoid reading them.
(Sri Caitanya Caritamrta-----1:12:27-----purport).

The details of the Hari-bhakti-vilāsa-grantha are given by Śrī Kavirāja Gosvāmī in the Madhya-līlā (24.329–345). The descriptions given in those verses by Kṛṣṇadāsa Kavirāja Gosvāmī are actually a description of those portions compiled by Gopāla Bhaṭṭa Gosvāmī. According to Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura, the regulative principles of devotional service compiled by Gopāla Bhaṭṭa Gosvāmī do not strictly follow our Vaiṣṇava principles. Actually, Gopāla Bhaṭṭa Gosvāmī collected only a summary of the elaborate descriptions of Vaiṣṇava regulative principles from the Hari-bhakti-vilāsa. It is Śrīla Bhaktisiddhānta Sarasvatī Gosvāmī’s opinion, however, that to follow the Hari-bhakti-vilāsa strictly is to actually follow the Vaiṣṇava rituals in perfect order. He claims that the smārta-samāja, which is strictly followed by caste brāhmaṇas, has influenced portions that Gopāla Bhaṭṭa Gosvāmī collected from the original Hari-bhakti-vilāsa. It is therefore very difficult to find out Vaiṣṇava directions from the book of Gopāla Bhaṭṭa Gosvāmī. It is better to consult the commentary made by Sanātana Gosvāmī himself for the Hari-bhakti-vilāsa under the name of Dig-darśinī-ṭīkā. Some say that the same commentary was compiled by Gopīnātha-pūjā Adhikārī, who was engaged in the service of Śrī Rādhā-ramaṇajī and who happened to be one of the disciples of Gopāla Bhaṭṭa Gosvāmī.
(Sri Caitanya Caritamrta-----2:1:35-----purport).

After the mahā-snāna was finished, the Deity was again massaged with scented oil and His body made glossy. Then the last bathing ceremony was performed with scented water kept within a conchshell.
In his commentary on this occasion, Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura quotes from the Hari-bhakti-vilāsa. Barley powder, wheat powder, vermilion powder, urad dhal powder and another powder preparation called āvāṭā (made by mixing banana powder and ground rice) are applied to the Deity’s body with a brush made from the hair at the end of a cow’s tail. This produces a nice finish. The oil smeared over the body of the Deity should be scented. To perform the mahā-snāna, at least two and a half mānas (about twenty-four gallons) of water are needed to pour over the body of the Deity.
(Sri Caitanya Caritamrta-----2:4:62-----translation and purport).

It is stated in the Hari-bhakti-vilāsa that one should not accept initiation from a person who is not in the brahminical order if there is a fit person in the brahminical order present. This instruction is meant for those who are overly dependent on the mundane social order and is suitable for those who want to remain in mundane life. If one understands the truth of Kṛṣṇa consciousness and seriously desires to attain transcendental knowledge for the perfection of life, he can accept a spiritual master from any social status, provided the spiritual master is fully conversant with the science of Kṛṣṇa. Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura also states that although one is situated as a brāhmaṇa, kṣatriya, vaiśya, śūdra, brahmacārī, vānaprastha, gṛhastha or sannyāsī, if he is conversant in the science of Kṛṣṇa he can become a spiritual master as vartma-pradarśaka-guru, dīkṣā-guru or śikṣā-guru. The spiritual master who first gives information about spiritual life is called the vartma-pradarśaka-guru, the spiritual master who initiates according to the regulations of the śāstras is called the dīkṣā-guru, and the spiritual master who gives instructions for elevation is called the śikṣā-guru. Factually the qualifications of a spiritual master depend on his knowledge of the science of Kṛṣṇa. It does not matter whether he is a brāhmaṇa, kṣatriya, sannyāsī or śūdra. This injunction given by Śrī Caitanya Mahāprabhu is not at all against the injunctions of the śāstras.
(Sri Caitanya Caritamrta-----2:8:128-----purport).

Regarding mantra-siddhy-ādi-śodhana, the efficacy of the mantra, Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura gives sixteen divisions, which are confirmed in the Hari-bhakti-vilāsa (beginning with 1.204):
siddha-sādhya-susiddhāri-
kramāj jñeyo vicakṣaṇaiḥ
These are (1) siddha, (2) sādhya, (3) susiddha and (4) ari. These four principles can be divided further: (1) siddha-siddha, (2) siddha-sādhya, (3) siddha-susiddha, (4) siddha-ari, (5) sādhya-siddha, (6) sādhya-sādhya, (7) sādhya-susiddha, (8) sādhya-ari, (9) susiddha-siddha, (10) susiddha-sādhya, (11) susiddha-susiddha, (12) susiddha-ari, (13) ari-siddha, (14) ari-sādhya, (15) ari-susiddha, and (16) ari-ari.
(Sri Caitanya Caritamrta-----2:24:331-----purport).

Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura writes, "The Hari-bhakti-vilāsa was originally compiled by Śrīla Sanātana Gosvāmī. Later, Gopāla Bhaṭṭa Gosvāmī produced a shortened version of it and added the Dig-darśinī-ṭīkā. In the Hari-bhakti-vilāsa there are so many quotations from the sātvata scriptures that sometimes it is inquired how the atheistic smārtas can refuse to accept them and instead imagine some other opinions. What is recorded in the Hari-bhakti-vilāsa strictly follows the Vedic scriptures and is certainly pure, but the attitude of the karmīs is always one of giving up the conclusion of pure Vaiṣṇava understanding. Because the karmīs are very much attached to the world and material activities, they always try to establish atheistic principles that oppose the understanding of the Vaiṣṇavas."
(Sri Caitanya Caritamrta-----3:4:221-----purport).

When Kṛṣṇadāsa Kavirāja Gosvāmī took permission from all the Vaiṣṇavas before writing Śrī Caitanya-caritāmṛta, Gopāla Bhaṭṭa Gosvāmī also gave him his blessings, but he requested him not to mention his name in the book. Therefore Kṛṣṇadāsa Kavirāja Gosvāmī has mentioned Gopāla Bhaṭṭa Gosvāmī only very cautiously in one or two passages of the Caitanya-caritāmṛta. Śrīla Jīva Gosvāmī has written in the beginning of his Tattva-sandarbha, "A devotee from southern India who was born of a brāhmaṇa family and was a very intimate friend of Rūpa Gosvāmī and Sanātana Gosvāmī has written a book that he has not compiled chronologically. Therefore I, a tiny living entity known as jīva, am trying to assort the events of the book chronologically, consulting the direction of great personalities like Madhvācārya, Śrīdhara Svāmī, Rāmānujācārya and other senior Vaiṣṇavas in the disciplic succession." In the beginning of the Bhagavat-sandarbha there are similar statements by Śrīla Jīva Gosvāmī. Śrīla Gopāla Bhaṭṭa Gosvāmī compiled a book called Sat-kriyā-sāra-dīpikā, edited the Hari-bhakti-vilāsa, wrote a foreword to the Ṣaṭ-sandarbha and a commentary on the Kṛṣṇa-karṇāmṛta, and installed the Rādhāramaṇa Deity in Vṛndāvana. In the Gaura-gaṇoddeśa-dīpikā (184) it is mentioned that his previous name in the pastimes of Lord Kṛṣṇa was Anaṅga-mañjarī. Sometimes he is also said to have been an incarnation of Guṇa-mañjarī. Śrīnivāsa Ācārya and Gopīnātha Pūjārī were two of his disciples.
(Sri Caitanya Caritamrta-----1:10:105-----purport).

Śrī Gopāla Bhaṭṭa Gosvāmī was the son of Veṅkaṭa Bhaṭṭa, a resident of Śrī Raṅgam. Gopāla Bhaṭṭa formerly belonged to the disciplic succession of the Rāmānuja-sampradāya but later became part of the Gauḍīya-sampradāya. In the year 1433 Śakābda (A.D. 1511), when Lord Caitanya Mahāprabhu was touring South India, He stayed for four months during the period of Cāturmāsya at the house of Veṅkaṭa Bhaṭṭa, who then got the opportunity to serve the Lord to his heart's content. Gopāla Bhaṭṭa also got the opportunity to serve the Lord at this time. Śrī Gopāla Bhaṭṭa Gosvāmī was later initiated by his uncle, the great sannyāsī Prabodhānanda Sarasvatī. Both the father and the mother of Gopāla Bhaṭṭa Gosvāmī were extremely fortunate, for they dedicated their entire lives to the service of Lord Caitanya Mahāprabhu. They allowedGopāla Bhaṭṭa Gosvāmī to go to Vṛndāvana, and they gave up their lives thinking of Śrī Caitanya Mahāprabhu. When Lord Caitanya was later informed that Gopāla Bhaṭṭa Gosvāmī had gone to Vṛndāvana and met Śrī Rūpa and Sanātana Gosvāmī, He was very pleased, and He advised Śrī Rūpa and Sanātana to accept Gopāla Bhaṭṭa Gosvāmī as their younger brother and take care of him. Śrī Sanātana Gosvāmī, out of his great affection for Gopāla Bhaṭṭa Gosvāmī, compiled the Vaiṣṇava smṛti named Hari-bhakti-vilāsa and published it under his name. Under the instruction of Śrīla Rūpa and Sanātana, Gopāla Bhaṭṭa Gosvāmī installed one of the seven principal Deities of Vṛndāvana, the Rādhāramaṇa Deity. The sevaits (priests) of the Rādhāramaṇa temple belong to the Gauḍīya-sampradāya.
(Sri Caitanya Caritamrta-----1:10:105-----purport).

The subject matter of the Hari-bhakti-vilāsa, by Śrī Sanātana Gosvāmī, was collected by Śrīla Gopāla Bhaṭṭa Gosvāmī and is known as a vaiṣṇava-smṛti. This vaiṣṇava-smṛti-grantha was finished in twenty chapters, known as vilāsas. In the first vilāsa there is a description of how a relationship is established between the spiritual master and the disciple, and mantras are explained. In the second vilāsa, the process of initiation is described. In the third vilāsa, the methods of Vaiṣṇava behavior are given, with emphasis on cleanliness, constant remembrance of the Supreme Personality of Godhead, and the chanting of the mantras given by the initiating spiritual master. In the fourth vilāsa are descriptions of saṁskāra, the reformatory method; tilaka, the application of twelve tilakas on twelve places of the body; mudrā, marks on the body; mālā, chanting with beads; and guru-pūjā, worship of the spiritual master. In the fifth vilāsa, one is instructed on how to make a place to sit for meditation, and there are descriptions of breathing exercises, meditation and worship of the śālagrāma-śilā representation of Lord Viṣṇu. In the sixth vilāsa, the required practices for inviting the transcendental form of the Lord and bathing Him are given.
(Sri Caitanya Caritamrta-----2:1:35-----purport).

According to Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura, the regulative principles of devotional service compiled by Gopāla Bhaṭṭa Gosvāmī do not strictly follow our Vaiṣṇava principles. Actually, Gopāla Bhaṭṭa Gosvāmī collected only a summary of the elaborate descriptions of Vaiṣṇava regulative principles from the Hari-bhakti-vilāsa. It is Śrīla Bhaktisiddhānta Sarasvatī Gosvāmī’s opinion, however, that to follow the Hari-bhakti-vilāsa strictly is to actually follow the Vaiṣṇava rituals in perfect order. He claims that the smārta-samāja, which is strictly followed by caste brāhmaṇas, has influenced portions that Gopāla Bhaṭṭa Gosvāmī collected from the original Hari-bhakti-vilāsa. It is therefore very difficult to find out Vaiṣṇava directions from the book of Gopāla Bhaṭṭa Gosvāmī. It is better to consult the commentary made by Sanātana Gosvāmī himself for the Hari-bhakti-vilāsa under the name of Dig-darśinī-ṭīkā. Some say that the same commentary was compiled by Gopīnātha-pūjā Adhikārī, who was engaged in the service of Śrī Rādhā-ramaṇajī and who happened to be one of the disciples of Gopāla Bhaṭṭa Gosvāmī.
(Sri Caitanya Caritamrta-----2:1:35-----purport).

In his book Caitanya-candrāmṛta, Śrīla Prabodhānanda Sarasvatī says, “One who receives a little favor from the Lord becomes so exalted that he does not care even for liberation, which is sought after by many great scholars and philosophers. Similarly, a devotee of Lord Caitanya considers residence in the heavenly planets a will-o’-the-wisp. He surpasses the perfection of mystic yoga power because for him the senses are like snakes with broken fangs.” A snake is a very fearful and dangerous animal because of his poison fangs, but if these fangs are broken, the appearance of a snake is no cause for fear. The yoga principles are meant to control the senses, but there is no scope for the senses of one engaged in the service of the Lord to be dangerous like snakes. These are the gifts of Śrī Caitanya Mahāprabhu.
The Hari-bhakti-vilāsa confirms that difficult things become easy to understand if one remembers Śrī Caitanya Mahāprabhu and easy things become very difficult to understand if one forgets Him. We actually see that even those who are very great scientists in the eyes of the general public cannot understand the very simple idea that life comes from life, because they do not have the mercy of Caitanya Mahāprabhu. They defend the false understanding that life comes from matter, although they cannot prove that this is a fact. Modern civilization, therefore, progressing on the basis of this false scientific theory, is simply creating problems to be solved by the so-called scientists.
(Sri Caitanya Caritamrta-----1:14:1-----purport).

The Hari-bhakti-vilāsa cites the following quotation from the Skanda Purāṇa concerning the blaspheming of a Vaiṣṇava:
yo hi bhāgavataṁ lokam upahāsaṁ nṛpottama
karoti tasya naśyanti artha-dharma-yaśaḥ-sutāḥ
nindāṁ kurvanti ye mūḍhā vaiṣṇavānāṁ mahātmanām
patanti pitṛbhiḥ sārdhaṁ mahā-raurava-saṁjñite
hanti nindati vai dveṣṭi vaiṣṇavān nābhinandati
krudhyate yāti no harṣaṁ darśane patanāni ṣaṭ
In a conversation between Mārkaṇḍeya and Bhagīratha, it is said, "My dear King, one who derides an exalted devotee loses the results of his pious activities, his opulence, his reputation and his sons. Vaiṣṇavas are all great souls. Whoever blasphemes them falls down to the hell known as Mahāraurava, accompanied by his forefathers. Whoever kills or blasphemes a Vaiṣṇava and whoever is envious of a Vaiṣṇava or angry with him, or whoever does not offer him obeisances or feel joy upon seeing him, certainly falls into a hellish condition."
Also, the Hari-bhakti-vilāsa (10.314) gives the following quotation from the Dvārakā-māhātmya:
kara-patraiś ca phālyante su-tīvrair yama-śāsanaiḥ
nindāṁ kurvanti ye pāpā vaiṣṇavānāṁ mahātmanām
In a conversation between Prahlāda Mahārāja and Bali Mahārāja, it is said, "Those sinful people who blaspheme Vaiṣṇavas, who are all great souls, are subjected very severely to the punishment offered by Yamarāja."
In his Bhakti-sandarbha (313), Jīva Gosvāmī quotes this statement concerning the blaspheming of Lord Viṣṇu:
ye nindanti hṛṣīkeśaṁ tad-bhaktaṁ puṇya-rūpiṇam
śata-janmārjitaṁ puṇyaṁ teṣāṁ naśyati niścitam
te pacyante mahā-ghore kumbhīpāke bhayānake
bhakṣitāḥ kīṭa-saṅghena yāvac candra-divākarau
śrī-viṣṇor avamānanād gurutaraṁ śrī-vaiṣṇavollaṅghanam
tadīya-dūṣaka-janān na paśyet puruṣādhamān
taiḥ sārdhaṁ vañcaka-janaiḥ saha-vāsaṁ na kārayet
""One who criticizes Lord Viṣṇu and His devotees loses all the benefits accrued in a hundred pious births. Such a person rots in the Kumbhīpāka hell and is bitten by worms as long as the sun and moon exist. One should therefore not even see the face of a person who blasphemes Lord Viṣṇu and His devotees. Never try to associate with such persons.""
In his Bhakti-sandarbha (265), Jīva Gosvāmī further quotes from Śrīmad-Bhāgavatam (10.74.40):
nindāṁ bhagavataḥ śṛṇvaṁs tat-parasya janasya vā
tato nāpaiti yaḥ so ’pi yāty adhaḥ sukṛtāc cyutaḥ
“"If one does not immediately leave upon hearing the Lord or the Lord"s devotee blasphemed, he falls down from devotional service.’” Similarly, Lord Śiva's wife Satī states in Śrīmad-Bhāgavatam (4.4.17):
karṇau pidhāya nirayād yad akalpa īśe
dharmāvitary asṛṇibhir nṛbhir asyamāne
chindyāt prasahya ruśatīm asatīṁ prabhuś cej
jihvām asūn api tato visṛjet sa dharmaḥ
“If one hears an irresponsible person blaspheme the master and controller of religion, he should block his ears and go away if unable to punish him. But if one is able to kill, then one should by force cut out the blasphemer's tongue and kill the offender, and after that he should give up his own life.”
(Sri Caitanya Caritamrta-----2:15:261-----purport).

“"Even though one is a very learned scholar in Sanskrit literature, if he is not engaged in pure devotional service, he is not accepted as My devotee. But if someone born in a family of dog-eaters is a pure devotee with no motives for enjoyment through fruitive activity or mental speculation, he is very dear to Me. All respect should be given to him, and whatever he offers should be accepted, for such devotees are indeed as worshipable as I am."
This verse, spoken by the Supreme Personality of Godhead, is found in the Hari-bhakti-vilāsa (10.127).
(Sri Caitanya Caritamrta-----3:16:25-----translation and purport).