The aim of life is tattva-jijñāsā. That Sanātana Gosvāmī did when he approached Śrī Caitanya Mahāprabhu. He inquired from Him, ke āmi kene āmāya jāre tāpa-traya: "My dear Lord, kindly let me know who am I and why I am put into the threefold miserable condition of life." Then one can say, "You are minister. You know what you are." Then he says, "No, actually I do not know what I am." Grāmya-vyavahāre paṇḍita tāi satya māni: "Some neighborhood men, they call me I am very big man, I am very learned man, and when I study myself," āpanāra hitāhita kichui nā jāni, "I do not know what I am, wherefrom I have come, where I have to go after leaving this body, why I am put into the tribulation of threefold miseries.
I do not want to die. Why death is enforced upon me? I do not want to take birth. Why that is also enforced upon me? I do not want old age. Why it is enforced upon me? I do not want disease. Why it is enforced upon me? And what is the purpose of my coming in this material world, and where I shall go after my death? Or this is the finish?" There are so many things to inquire. That is called tattva-jijñāsā. This is called tattva-jijñāsā. Jīvasya tattva-jijñāsā.
Prabhupada's lecture - Śrīmad-Bhāgavatam 1.2.11 Tirupati, April 26, 1974