SB 1.2.22-23: Ultimate benefit
SB 1.2.22: Certainly, therefore, since time immemorial, all transcendentalists have been rendering devotional service to Lord Kṛṣṇa, the Personality of Godhead, with great delight, because such devotional service is enlivening to the self.
The speciality of devotional service unto the Personality of Godhead Lord Śrī Kṛṣṇa is specifically mentioned herein. The living...