Being purified by his intelligence and controlling the mind with determination, giving up the objects of sense gratification, being freed from attachment and hatred, one who lives in a secluded place, who eats little, who controls his body, mind and power of speech, who is always in trance and who is detached, free from false ego, false strength, false pride, lust, anger, and acceptance of material things, free from false proprietorship, and peaceful — such a person is certainly elevated to the position of self-realization.

Srila Prabhupada — Bhagavad Gita As It Is, Chapter18 “Conclusion: The Perfection of Renunciation ” Text 51-53