SB 1.2.6: The supreme occupation [dharma] for all humanity is that by which men can attain to loving devotional service unto the transcendent Lord. Such devotional service must be unmotivated and uninterrupted to completely satisfy the self.
A living being’s sustenance of existence is to coordinate his activities with his eternal relation with the Supreme Lord Kṛṣṇa. Kṛṣṇa is the central pivot of living beings, and He is the all-attractive living entity or eternal form amongst all other living beings or eternal forms. Each and every living being has his eternal form in the spiritual existence, and Kṛṣṇa is the eternal attraction for all of them. Kṛṣṇa is the complete whole, and everything else is His part and parcel. The relation is one of the servant and the served. It is transcendental and is completely distinct from our experience in material existence.This relation of servant and the served is the most congenial form of intimacy. One can realize it as devotional service progresses. Everyone should engage himself in that transcendental loving service of the Lord, even in the present conditional state of material existence. That will gradually give one the clue to actual life and please him to complete satisfaction.