Brahma is praying Lord Krsna in this way, that "A person," jnane prayasam udapasya, "giving up the futile endeavor to understand the Supreme by one's limited knowledge..." Give up. Give up this attempt. Jnane prayasam. Jnane prayasam means that the theosophists, the philosophers, they are trying years after years, life after lifes - "What is God? What is God? What is the Absolute Truth?" Just like we throw sputniks - "How much the space is length and breadth?" This is frog philosophy... With the limited knowledge, if we want to know how far, how much long and short is God, it is a futile attempt... It is not possible. So Bhagavata recommends, jnane prayasam udapasya: "Just give up this nonsense habit, to measure the Supreme." It is not possible.
Lecture on Bhagavad-gita 8.14-15, New York, November 16, 1966