PURPORT

The Supreme Personality of Godhead, Krsna, cannot be understood by the individual soul through mental, physical or intellectual exercises. It is by the grace of the Supreme Personality of Godhead that the individual soul is enlightened. Therefore, the Lord is described here as atma-pradipa. The Lord is like the sun, which illuminates everything and cannot be illuminated by anyone. Therefore, if one is serious about understanding the Supreme, one must receive enlightenment from Him, as instructed in Bhagavad-gita. One cannot understand the Supreme Personality of Godhead by one's mental, physical or intellectual powers.