Hatha yoga "voidness" ideas found respectively in Hinduism and Buddhism. Some traditions such as the Kaula tantric sect of Hinduism and Sahajiya tantric sect of Buddhism pursued more esoteric goals such as alchemy (Nagarjuna, Carpita), magic, "kalavancana" (cheating death) and "parakayapravesa" (entering another's body). James Mallinson, however, disagrees and suggests that such fringe practices are far removed from the mainstream Yoga's goal as meditation-driven means to liberation in Indian religions. The majority of historic Hatha yoga texts do not give any importance to "siddhis". The mainstream practice considered the pursuit of magical powers as a distraction or hindrance to Hatha yoga's ultimate
Karma karma theories is the concept of reincarnation or the cycle of rebirths ("saṃsāra"). Rebirth is a fundamental concept of Hinduism, Buddhism, Jainism and Sikhism. The concept has been intensely debated in ancient literature of India; with different schools of Indian religions considering the relevance of rebirth as either essential, or secondary, or unnecessary fiction. Karma is a basic concept, rebirth is a derivative concept, so suggests Creel; Karma is a fact, asserts Yamunacharya, while reincarnation is a hypothesis; in contrast, Hiriyanna suggests rebirth is a necessary corollary of karma. Rebirth, or "saṃsāra", is the concept that all life forms go