Undeviating concentration on the Supreme Lord is the first sign of pure devotion. In other words, a pure devotee is one who wards off all desires and thoughts not related to unflinching devotional service to the Supreme Lord. Many spiritual stalwarts have commented upon pure devotional service. For example, Śrīla Rūpa Gosvāmī, the foremost of the great spiritual preceptors in the time of Śrī Caitanya Mahāprabhu, wrote in his Bhakti-rasāmṛta-sindhu (Bhakti-rasāmṛta-sindhu 1.1.11):
- anyābhilāṣitā-śūnyaṁ
- jñāna-karmādy-anāvṛtam
- ānukūlyena kṛṣṇānu-
- śīlanaṁ bhaktir uttama
- (CC Madhya 19.167)
One should render transcendental loving service to the Supreme Lord Kṛṣṇa favorably and without desire for material profit or gain through fruitive activities or philosophical speculation. That is called pure devotional service.
People propitiate demigods to satisfy their material desires. Those neophyte devotees of Kṛṣṇa who try to appease demigods like the sun-god in order to escape ill health do so because they succumb to serious doubts about Lord Kṛṣṇa's supreme divinity. In analyzing the word anyābhilāṣa ("desires other than those directed toward serving Lord Kṛṣṇa"), we find that one fosters this type of perverted intelligence when one thinks that the sun-god, who is merely a manifestation of the Supreme Lord's potency, can protect one from ill health but that the Supreme Lord, Kṛṣṇa, cannot. Once these mind—clouding doubts disperse, one enters the doors of pure devotional service. Karmīs and jñānīs are also tainted by material desires—the desire to enjoy their senses and the desire for liberation, respectively. Pure devotional service is attained only when these material desires are dissipated and one renders unbroken, favorable devotional service to the Lord Kṛṣṇa. The great sage Nārada has said,
- sarvopādhi-vinirmuktaṁ
- tat-paratvena nirmalam
- hṛṣīkeṇa hṛṣīkeśa-
- sevanaṁ bhaktir ucyate
- (CC Madhya 19.170)
Bhakti, or devotional service, means engaging all our senses in the service of the Lord, the Supreme Personality of Godhead, the master of all the senses. When the spirit soul renders service unto Him, there are two side effects-one is freed from all material designations, and, simply by being employed in the service of the Lord, one's senses are purified. (Nārada-Pañcarātra).
The various identities a person adopts in relation to his mind and body are all material designations. The pure soul is unencumbered by such mundane designations, for the only identity he has is that of a servant and inseparable part of the Supreme Lord. Thus, with the shedding of all false designations, one enters a state of transcendence, and when one is firmly situated in transcendence, one becomes pure. Serving the Supreme Lord, the master of all senses, with such purified senses is unalloyed devotional service.