If you have to acquire knowledge, then first of all, you have to find out a person who has already seen the light

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Srila Prabhupada, New York, August 12, 1966: […] So why jnanamaya-yajna is preferred? Sarvam karmakhilam partha jnane parisamapyate. Because after all, we have to acquire that knowledge which will make me a surrendered soul to the Supreme. That’s it. Bahunam janmanam ante jnanavan mam prapadyate [Bg. 7.19].

So jnana also means that to understand our position, to understand what is God, to understand what is our relationship with God, to understand why we are in this material world and what is our next life, wherefrom we have come, where we have the right knowledge, you can understand all these things.

And when you understand everything, the path is clear, you can clearly understand that “I am the part and parcel of the Supreme; therefore my duty is to render transcendental service to the Supreme”. That is the highest yajna, highest jnana, knowledge, knowledge, yajna. So Krsna advises that jnanamaya-yajna, sacrifice… Sacrifice.

Now, to understand these things you have to sacrifice some time, you have to sacrifice some labor, some attention. So these sacrifices are counted more than when we offer sacrificial goods in the fire. That is clearly stated here.

Now what is the process of this knowledge? That is also stated by the Lord.

tad viddhi pranipatena pariprasnena sevaya upadeksyanti te jnanam jnaninas tattva-darsinah [Bg. 4.34]

Now, if you have to acquire knowledge, then first of all, you have to find out a person who has already seen the light. Tattva-darsinah. Tattva… Tattva means… In the Srimad-Bhagavatam, tattva is described, the English translation is “Absolute Truth”. That is called tattva. Full Lecture