So civilized human being must have religion. But religion does not mean to develop or improve economic condition. Generally people go to church, to temple, to express some awful condition, ārtaḥ jijñāsuḥ. Catur-vidhā bhajante māṁ sukṛtino 'rjuna. What is the next life? Ārto arthārthī jijñāsur jñānī ca bharatarṣabha [Bg. 7.16]. Four classes of men in the beginning take to God consciousness if they are pious, sukṛtinaḥ. Sukṛti means pious. One who does not act sinfully, he is called sukṛti. And one who acts sinfully, he is called duṣkṛtina. So Kṛṣṇa says in the Bhagavad-gītā that four classes of men, namely ārto arthārthī, if he is pious and if he is distressed, then he goes to church or temple—"My Lord, I am distressed. Please give me some help"—prays to the Lord. And arthārthī, one who is poor, he also goes to pray to God to give him some money. He is in distressed condition.
These two classes, and another two classes, jijñāsu, one who is inquisitive to understand what is God, and jñānī... Jñānī means one who understands his constitutional position. He is jñānī. Most people, they do not understand what he is and what is the goal of life. They are called ajñānī, in ignorance. Just like animal. Animal does not know what is the aim of life. Similarly, if a human being does not know what is the aim of life, he is also animal.
Prabhupada's lecture - Śrīmad-Bhāgavatam 1.2.9 - Detroit, August 3, 1975