In the Bhakti-rasāmṛta-sindhu it is said that a person whose only desire is to render transcendental loving service to the Lord is a free person in any condition of material existence. That service attitude is the svarūpa, or real form, of the living entity. Lord Śrī Caitanya Mahāprabhu, in the Caitanya-caritāmṛta, also confirms this statement by declaring that the real, spiritual form of the living entity is eternal servitorship to the Supreme Lord. The Māyāvāda school shudders at the thought of a service attitude in the living entity, not knowing that in the transcendental world the service of the Lord is based on transcendental love. Transcendental loving service is never to be compared to the forced service of the material world. In the material world, even if one is under the conception that he is no one's servant, he is still the servant of his senses, under the dictation of the material modes.
(Srimad Bhagavatam----3:9:33----purport).

The enlightened jñānī, when free from all material contaminations, namely the gross and subtle bodies together with the senses of the material modes of nature, is placed in the Supreme and is thus liberated from material bondage. The jñānīs and the devotees are actually in agreement up to the point of liberation from material contamination. But whereas the jñānīs remain pacified on the platform of simple understanding, the devotees develop further spiritual advancement in loving service. The devotees develop a spiritual individuality in their spontaneous service attitude, which is enhanced on and on, up to the point of mādhurya-rasa, or transcendental loving service reciprocated between the lover and the beloved.
(Srimad Bhagavatam----3:9:33----purport).

In the beginning of the Second Chapter of Śrīmad-Bhāgavatam it is stated that when one engages himself in the devotional service of Vāsudeva, spiritual knowledge and renunciation of the material world automatically become manifest. Thus a devotee does not have to try separately for renunciation or knowledge. Devotional service itself is so powerful that by one's service attitude, everything is revealed. It is stated here, śivaḥ panthāḥ: this is the only auspicious path for self-realization. The path of devotional service is the most confidential means for attaining Brahman realization. That perfection in Brahman realization is attained through the auspicious path of devotional service indicates that the so-called Brahman realization, or realization of the brahmajyoti effulgence, is not brahma-siddhi.
(Srimad Bhagavatam----3:25:19----purport).

No one should think that nature is working automatically, without superintendence. The Vedic literature says that the clouds are controlled by the demigod Indra, heat is distributed by the sun-god, the soothing moonlight is distributed by Candra, and the air is blowing under the arrangement of the demigod Vāyu. But above all these demigods, the Supreme Personality of Godhead is the chief living entity. Nityo nityānāṁ cetanaś cetanānām (Kaṭha Upaniṣad 2.2.13). The demigods are also ordinary living entities, but due to their faithfulness—their devotional service attitude—they have been promoted to such posts. These different demigods, or directors, such as Candra, Varuṇa and Vāyu, are called adhikāri-devatā. The demigods are departmental heads.
(Srimad Bhagavatam----3:25:42----purport).

The difference between the impersonalists and the personalists is that the impersonalists, limited by their speculative processes, cannot even approach the Supreme Personality of Godhead, whereas the devotees please the Supreme Personality of Godhead through His transcendental loving service. Sevonmukhe hi: due to the service attitude of the devotee, the Lord is revealed to him. The Supreme Lord cannot be understood by materialistic persons even though He is present before them. In Bhagavad-gītā, Lord Kṛṣṇa therefore condemns such materialists as mūḍhas. Mūḍha means "rascal." It is said in the Gītā, "Only rascals think of Lord Kṛṣṇa as an ordinary person. They do not know what Lord Kṛṣṇa's position is or what His transcendental potencies are." Unaware of His transcendental potencies, the impersonalists deride the person of Lord Kṛṣṇa, whereas the devotees, by dint of their service attitude, can understand Him as the Personality of Godhead. In the Tenth Chapter of Bhagavad-gītā, Arjuna also confirmed that it is very difficult to understand the personality of the Lord.
(Srimad Bhagavatam----4:7:31----purport).

"If one offers Me with love and devotion a leaf, a flower, fruit or water, I will accept it." The devotee offers eatables in the form of vegetables, fruits, leaves and water to the arcā-vigraha. The Lord, being bhakta-vatsala, compassionate upon His devotees, accepts these offerings. Atheists may think that the devotees are engaged in idol worship, but the fact is different. Janārdana, the Supreme Lord, accepts bhāva, the attitude of service. The neophyte devotee engaged in the worship of the Lord may not understand the value of such worship, but the Supreme Lord, being bhakta-vatsala, accepts His devotee and in due course of time takes him home.
(Srimad Bhagavatam----4:30:28----purport).

If instead of serving māyā under different names, one turns his service attitude toward the Supreme Lord, he is then safe, and there is no more difficulty. If one returns to his original, natural tendency in the human form of life by understanding the perfect knowledge given by Kṛṣṇa Himself in the Vedic literature, one's life is successful.
(Srimad Bhagavatam----6:1:53----purport).

Everyone should be allowed to render service to the Lord to the best of his ability, and everyone should appreciate the service of others. Such are the activities of Vaikuṇṭha. Since everyone is a servant, everyone is on the same platform and is allowed to serve the Lord according to his ability. As confirmed in Bhagavad-gītā (15.15), sarvasya cāhaṁ hṛdi sanniviṣṭo mattaḥ smṛtir jñānam apohanaṁ ca: the Lord is situated in everyone's heart, giving dictation according to the attitude of the servant. However, the Lord gives different dictation to the nondevotees and devotees. The nondevotees challenge the authority of the Supreme Lord, and therefore the Lord dictates in such a way that the nondevotees forget the Lord's service, life after life, and are punished by the laws of nature. But when a devotee very sincerely wants to render service to the Lord, the Lord dictates in a different way.
(Srimad Bhagavatam----7:5:12----purport).