Real purpose is vāsudeve bhagavati ātma-bhāvaṁ dṛḍhaṁ gataḥ, to increase our affection, or love, for Kṛṣṇa. Vāsudeve bhagavati. Vāsudeve bhagavati bhakti-yogaḥ prayojitaḥ, janayaty āśu vairāgyam (SB 1.2.7). Purpose, sannyasya, renounced . . . people cannot renounce. They are very much attached to this material body and anything in relationship with this body. But the real purpose of human life is to become renounced—no more material body. That is required. Vairāgyam. This is called vairāgyam, or renounced.
Because we want this material body, therefore we get it, life after life. This will continue so long we'll be overpowered by material thought. Material thought means these fruitive activities. "I shall work very hard, and I shall get so much wealth, and for this purpose I can go to church and temple. If God gives me millions of dollars, then I am ready to go there."
So real purpose is sense gratification. "If I take to religious principles, then I'll get more money without any hard work, and if I get more money, then I'll be able to satisfy my senses." This is called dharmārtha-kāma. And there is another stage, which is called mokṣa, liberation.
So people are not interested for liberation. They want to become religious for material benefit. But that is not the real purpose of life. Material benefit, you cannot get more than what you are destined to have. That is already fixed up.