Sreyan dravya-mayad yajnaj
sarvam karmakhilam partha
(Bhagavad Gita, Text 33, Ch 4, Transcendental Knowledge)
Meaning: O chastiser of the enemy, the sacrifice performed in knowledge is better than the mere sacrifice of material possessions. After all, O son of Prtha, all sacrifices of work culminate in transcendental knowledge.
*** The purpose of all sacrifices is to arrive at the status of complete knowledge, then to gain release from material miseries, and ultimately, to engage in loving transcendental service to the Supreme Lord.