So we have to learn from Bhagavad-gītā directly spoken by the Supreme Lord and accept it and do accordingly. That is called Kṛṣṇa consciousness. We think of Kṛṣṇa: He is everything, or God is everything. So let us become submissive and prosecute this, the process of devotional service. That is the way of happiness. That is the way of perfection.
Srila Prabhupada's lecture on Bhagavad-gītā 9.18–19, Dec. 5, 1966, New York