Krsna is instructing us how to understand Him. That is our only business. This human form of life is meant for understanding Krsna because we are very thickly related with Krsna, just like father and the son. This relation cannot be broken. Maybe son is out of home, son may have forgotten, but Krsna, the supreme father, He does not forget.
Prabhupada:
sri bhagavan uvaca
mayy asakta-manah partha
yogam yunjan mad-asrayah
asamsayam samagram mam
yatha jnasyasi tac chrnu
Krishna, Bhagavan, the Supreme… Bhag