Ramana Maharshi

 "Enlightened enquiry alone leads to liberation. Supernatural powers are all illusory appearances created by the power of maya (mayashakti). Self-realization which is permanent is the only true accomplishment (siddhi). Accomplishments which appear and disappear, being the effect of maya, cannot be real. They are accomplished with the object of enjoying fame, pleasures, etc. They come unsought to some persons through their karma. Know that union with Brahman is the real aim of all accomplishments. This is also the state of liberation (aikya mukti) known as union (sayujya)."