By performance of religious rituals one ultimately reaches the supreme goal of knowledge by understanding that Vāsudeva, the Supreme Personality of Godhead, is the cause of everything. It is clearly stated in the Bhagavad-gītā that even those who are advocates of knowledge alone, without any religious ritualistic processes, advance in knowledge after many, many lifetimes of speculation and thus come to the conclusion that Vāsudeva is the supreme cause of everything that be.
-Sri Caitanya-caritamrta Canto 6 Chapter 14 Verse 15 Purport

धर्मस्य ह्यापवर्ग्यस्य नार्थोऽर्थायोपकल्पते ।
नार्थस्य धर्मैकान्तस्य कामो लाभाय हि स्मृत: ॥ ९ ॥
All occupational engagements are certainly meant for ultimate liberation. They should never be performed for material gain. Furthermore, according to sages, one who is engaged in the ultimate occupational service should never use material gain to cultivate sense gratification.
-Shrimad Bhagvatam Canto 1 Chapter 2 Verse 9