Lord proclaims to explain, how one can achieve Supreme perfectional stage, Brahman (Highest knowledge)
Highest perfection of knowledge is attaining Krishna consciousness (Explained in Texts 18.51 – 18.54)
LINK BETWEEN TEXTS 18.50 & 18.51 — These verses refer to a yogi on the path of jnana-yoga who has purified his consciousness through work and has thus already progressed upward from the stage of karma to the stage of jnana. Srila Vishvanatha Cakravarti Thakura, in his comment to Text 18.49, explains: “It being the case that all work is covered with fault, the person on the first level of sannyasa rejects the faulty aspects of work—namely the mentality of being the doer and the expectation of profit. Thus in due course of time, he perfects his sadhana. After having ascended to the level of yoga, he gives up work itself. This is the second stage of sannyasa, as described in this verse beginning asakta-buddhih sarvatra.” Thus we can understand that a devotee who has worshiped the Lord by his work will not attain Brahman realization in the same way as does the jnana-yogi. A devotee, after being purified by detached work, attains freedom from false ego and moves forward to realize and serve the Supreme Brahman. The process practiced by an advanced jnana-yogi to elevate him further is next described.