In Śrīmad-Bhāgavatam (3.29.11-13) Lord Kapila explains that as soon as a pure devotee hears the glories and transcendental qualities of the Supreme Personality of Godhead, who is seated in everyone's heart, his mind immediately flows toward the Lord, just as the waters of the Ganges flow toward the sea. Such spontaneous attraction to the service of the Supreme Personality of Godhead is most important to pure devotional service. Devotional service is pure when one engages in the service of the Supreme Lord without any motive and without being hampered with material impediments. The pure devotee does not desire to live on the same planet with the Supreme Lord, nor does he desire the same opulence as the Lord, nor does he desire to have the same form as the Lord, nor to live with Him side by side, nor to merge into His existence, etc. Even if the devotee were offered such rewards by the Lord, he would reject them. The point is that a devotee is so much absorbed in the transcendental loving service of the Lord that he has no time to think of any benefit beyond his immediate engagement. Just as an ordinary materialistic businessman thinks of nothing else when he is absorbed in his business, a pure devotee, when engaged in the service of the Lord, does not think of anything beyond that engagement.
If one is so absorbed in the rendering of service, he can be understood to be elevated to the highest position of bhakti. By such transcendental loving service alone can one surpass the influence of māyā and relish pure love of Godhead. As long as one desires material benefit or liberation, which are called the two witches of allurement, he cannot relish the taste of transcendental loving service to the Supreme Lord.