“If a person is engaged in full Krishna consciousness in devotional service of the Lord, it is to be understood that he has understood all the Vedic knowledge. In the Vaishnava parampara it is said that if one is engaged in the devotional service of Krishna, then there is no need for a spiritual process to understand the Supreme Absolute Truth. He has already come to the post because he is engaged in the devotional service of the Lord.” (Shrila Prabhupada, Bhagavad-gita, 15.19 Purport)