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
Ashtanga vinyasa yoga more breaths in difficult postures. Various influential figures have discussed the specific process of breath in ashtanga. Pattabhi Jois recommends breathing fully and deeply with the mouth closed, although does not specifically refer to Ujjayi breathing. However, Manju Jois does and refers to breathing called "‘dirgha rechaka puraka’, meaning long, deep, slow exhalations and inhalations. It should be dirgha... long, and like music. The sound is very important. You have to do the Ujjayi pranayama". In late 2011, Sharath Jois, the grandson of Pattabhi Jois, declared his feelings on the issue, stating that Ujjayi breathing was not done in the