A devotee never practices any mystic power. But a devotee, being protected by the supreme mystic, Krsna, a devotee is never in danger in all circumstances.
So just to try to remain a devotee always, and Krsna will give you protection in all circumstance. There is no fear. Devotees, they remain devotee of Krsna, and Krsna does everything. If something mystic or magic has to be shown, the devotee does not take any credit for that magic, because the magic is done by Krsna for the sake of devotee. So he doesn’t require to learn the art of magic to cheat the people. That is not. When magic is required, Krsna plays. Krsna is called Yogesvara. Yoga is mystic power, and He is the Yogesvara, master of all yogesvara…, yoga, mystic power. Yatra yogesvarah harih. Just like Krsna was on the chariot of the Kuruksetra battle, Arjuna. Arjuna was facing enemies, big, big enemies like Bhisma, Karna, Dronacarya and many other who were very, very powerful. Arjuna was nothing before them. They are compared with timingala, timingala, a big fish which swallows up the whale fishes. So Maharaja Pariksit said that “Although they were timingala-like, they could kill thousands of Arjuna, but still, because You were protecting him, sitting on his chariot, they were killed; Arjuna was not killed.”
So the devotee, he doesn’t require to acquire any mystic power. What mystic power Prahlada could attain? He was only five years old. So there was no opportunity of acquiring any mystic power. But he was being protected by the supreme mystic, Krsna. That should be a devotee’s point of view. Don’t waste your time for acquiring so-called mystic power. Just devote yourself to remain a pure devotee of Krsna, and you become the supreme mystic.
From Srila Prabhupada’s lecture, 25 May 1975, Honolulu