By rendering devotional service unto the Supreme Personality of Godhead, Sri Krishna, one immediately acquires causeless knowledge and detachment from the world. If one engages in the service of Vasudeva ,Krishna, this knowledge comes, and one becomes a mahatma. A mahatma is one who realizes that Krishna is everything. He does not defy Krishna or try to become Krishna. One who does so is not a mahatma, but a duratma, a rascal.