From this verse we can understand the meaning of initiation and the duties of a disciple and spiritual master. The spiritual master never instructs his disciple, "Take a mantra from me, pay me some money, and by practicing this yoga system you will become very expert in materialistic life." This is not the duty of a spiritual master. Rather, the spiritual master teaches the disciple how to give up materialistic life, and the disciple's duty is to assimilate his instructions and ultimately follow the path back home, back to Godhead, from whence no one returns to this material world.
Srila Prabhupada [SB 6.5.21 Purport]