“A devotee on the topmost platform of devotional service always humbly thinks that he is not rendering any devotional service. He thinks that he is poor in devotional service and that his body is material. On the other hand, those known as the sahajiyās foolishly think that their material bodies are transcendental. Because of this, they are always bereft of the association of pure devotees, and thus they cannot behave like Vaiṣṇavas. Observing the defects of the sahajiyās, Śrīla Bhaktivinoda Ṭhākura has sung as follows in his book Kalyāṇa-kalpataru:
āmi ta' vaiṣṇava, e-buddhi ha-ile,
amānī nā haba āmi
pratiṣṭhāśā āsi’, hṛdaya dūṣibe,
ha-iba niraya-gāmī
nije śreṣṭha jāni’, ucchiṣṭādi-dāne,
habe abhimāna bhāra
tāi śiṣya tava, thākiyā sarvadā,
nā la-iba pūjā kāra
“"If I think I am a Vaiṣṇava, I shall look forward to receiving respect from others. And if the desire for fame and reputation pollutes my heart, certainly I shall go to hell. By giving others the remnants of my food, I shall consider myself superior and shall be burdened with the weight of false pride. Therefore, always remaining your surrendered disciple, I shall not accept worship from anyone else."
(Sri Caitanya Caritamrta----3:4:173----purport).

Śrīla Bhaktivinoda Ṭhākura says in his Amṛta-pravāha-bhāṣya that when a man and woman are married, they beget children and are thus entangled in family life. Talk concerning such family life is called grāmya-kathā. A person in the renounced order never indulges in either hearing or talking about such subjects. He should not eat palatable dishes, since that is unfit for a person in the renounced order. He should show all respect to others, but should not expect respect for himself. In this way, one should chant the holy name of the Lord and think of how to serve Rādhā and Kṛṣṇa in Vṛndāvana.
(Sri Caitanya Caritamrta----3:6:237----purport).

Śrīla Bhaktivinoda Ṭhākura says that there are three varieties of invitations—those in the mode of goodness, those in passion and those in ignorance. An invitation accepted from a pure devotee is in the mode of goodness, an invitation accepted from a person who is pious but materially attached is in the mode of passion, and an invitation accepted from a person who is materially very sinful is in the mode of ignorance.
(Sri Caitanya Caritamrta----3:6:279----purport).

Mahā-prasādam is nondifferent from Kṛṣṇa. Therefore, instead of eating mahā-prasādam, one should honor it. It is said here, karilā vandana, "he offered prayers." When taking mahā-prasādam, one should not consider the food ordinary preparations. Prasāda means favor. One should consider mahā-prasādam a favor of Kṛṣṇa. As stated by Śrīla Bhaktivinoda Ṭhākura, kṛṣṇa baḍa dayāmaya karibāre jihvā jaya svaprasāda-anna dilā bhāi. Kṛṣṇa is very kind. In this material world we are all very much attached to tasting various types of food. Therefore, Kṛṣṇa eats many nice varieties of food and offers the food back to the devotees, so that not only are one's demands for various tastes satisfied, but by eating prasādam one makes advancement in spiritual life. Therefore, we should never consider ordinary food on an equal level with mahā-prasādam.
(Sri Caitanya Caritamrta----3:11:20----purport).

If one can restrain the demands of the tongue by limiting its activities to the eating of prasāda, the urges of the belly and the genitals can automatically be controlled. In this connection Śrīla Bhaktivinoda Ṭhākura says:
śarīra avidyā jāla, jaḍendriya tāhe kāla,
jīve phele viṣaya-sāgare
tā'ra madhye jihvā ati, lobhamāyā sudurmati,
tā'ke jetā kaṭhina saṁsāre
kṛṣṇa baḍa dayāmaya, karibāre jihvā jaya,
sva-prasāda-anna dila bhāi
sei annāmṛta khāo, rādhā-kṛṣṇa-guṇa gāo,
preme ḍāka caitanya-nitāi
"O Lord! This material body is a lump of ignorance, and the senses are a network of paths leading to death. Somehow or other we have fallen into the ocean of material sense enjoyment, and of all the senses the tongue is the most voracious and uncontrollable. It is very difficult to conquer the tongue in this world, but You, dear Kṛṣṇa, are very kind to us. You have sent this nice prasāda to help us conquer the tongue; therefore let us take this prasāda to our full satisfaction and glorify Your Lordships Śrī Śrī Rādhā and Kṛṣṇa and in love call for the help of Lord Caitanya and Prabhu Nityānanda." There are six kinds of rasas (tastes), and if one is agitated by any one of them, he becomes controlled by the urges of the tongue.
(Nectar of Instruction).