Magic is the art of altering things using supernatural means or through knowledge of occult natural laws, unknown to science. The Atharva Veda contains mantras or magical spells that can cause both good and bad alterations. The Indian word mantrik means "magician" or a person who knows mantras, spells, and curses that can be used for or against forms of magic.
Tantra is the practice of ritual magic performed by a tantrik. Many ascetics after long periods of penance and meditation are alleged to attain a state where they may utilize supernatural powers. Siddhars of South India are said to have performed extraordinary miracles.
A BBC feature unveils the secret behind the yogic powers to levitate as displayed by many Indian sadhus and yogis.