PURPORT

In Bhagavad-gita it is clearly said:

bhaktya mam abhijanati
yavan yas casmi tattvatah
tato mam tattvato jnatva
visate tad-anantaram

"One can understand the Supreme Personality as He is only by devotional service. And when one is in full consciousness of the Supreme Lord by such devotion, he can enter into the kingdom of God." (Bg. 18.55)

One can understand and see the Supreme Personality of Godhead through the process of devotional service, and not in any other way. Although Maharaja Nabhi performed prescribed duties and sacrifices, it should still be considered that the Lord appeared before him not due to his sacrifices but because of his devotional service. It was for this reason that the Lord agreed to appear before him in His beautiful bodily features. As stated in Brahma-samhita (5.30), the Supreme Lord in His original nature is very beautiful. Venum kvanantam aravinda-dalayataksam barhavatamsam asitambuda-sundaraṅgam: the Supreme Personality of Godhead, although blackish, is very, very beautiful.