In this verse the word buddhi-yogam is very significant. We may remember that in the Second Chapter the Lord, instructing Arjuna, said that He had spoken to him of many things and that He would instruct him in the way of buddhi-yoga. Now buddhi-yoga is explained. Buddhi-yoga itself is action in Krishna consciousness; that is the highest intelligence. Buddhi means intelligence, and yoga means mystic activities or mystic elevation. When one tries to go back home, back to Godhead, and takes fully to Krishna consciousness in devotional service, his action is called buddhi yoga. In other words, buddhi-yoga is the process by which one gets out of the entanglement of this material world. The ultimate goal of progress is Krishna. People do not know this; therefore the association of devotees and a bona fide spiritual master are important. One should know that the goal is Krishna, and when the goal is assigned, then the path is slowly but progressively traversed, and the ultimate goal is achieved.