When all the energies of the mind, including those of the organs of knowledge and of action, become concentrated as a unified mental mode directed to the Supreme Being, spontaneous like an instinct and devoid of any extraneous motives, the resulting state of mind is called Bhakti. It is superior even to Mukti. Like fire it burns up the soul’s sheath of ignorance. (Bhagavata Purana 3.25. 32-33)
It is true that Bhagvan grants the fulfillment of their prayers to those devotees who approach Him with worldly desires. But by this Bhagavan does not bestow on them the real fulfillment; for it is found that when one desire is satisfied, they approach Bhagavan with new desires. But in regard to those who worship Bhagavan without any desire (i.e, with pure love), Bhagavan, out of His own accord, bestows on them His grace, which roots out all wants (and establishes them in the bliss of Divine communion) Srimad Bhagavata 5.19.27.
The right path of spiritual regeneration for men who are distracted in mind by continued involvement in worldly affairs, so fleeting and full of fears, is to devote themselves to the service of Bhagavan – to perform all actions without desiring the fruits of action. Srimad Bhagavata 7.5.5.
The mind might have been restrained from running to external objects; one’s nature as spirit might have been understood; the desire for psychic powers might have disappeared; even the ego of having attained to spiritual perfection might have been abandoned. Still the spiritual aspirant should be assiduous in the practice of disciplines until he has developed delight and absorption in (the hearing and contemplation of)Divine excellences. (Bhagavata 4.23.12)