How to become Krsna conscious? Yat karosi: “Whatever you do,” kurusva tad mad-arpanam, “the result you give Me.” Then it will be Krsna consciousness. You always think that you are doing for Krsna. Of course, by the order of Krsna or by His representative, not whimsically. If you do something nonsense and if you think that “I am doing for Krsna,” that will not be accepted. It must be verified by the acceptance of Krsna and Krsna’s…, or Krsna’s representative. Arjuna did not fight without Krsna’s order. Therefore we must receive the order. If we say that “We do not find Krsna. How shall I…?” then Krsna’s representative. That is sadhu. The Krsna’s representative is sadhu.

From Srila Prabhupada’s lecture on Srimad-Bhagavatam 3.25.24 — November 24, 1974, Bombay