Hatha yoga of self purification), 15 asana (postures: seated, laying down, and non-seated), pranayama (breathing) and kumbhaka (breath retention), mudras (internalized energetic practices), meditation, chakras (centers of energy), kundalini, nadanusandhana (concentration on inner sound), and other topics. "Hatha Yoga Pradipika" is the best known and most widely used Hatha yoga text. It consists of 389 "shlokas" (verses) in four chapters: Post-Hathapradipika texts on Hatha yoga include: Historically, Hatha yoga has been a broad movement across the Indian traditions, openly available to anyone. According to Mallinson, the Hatha yoga represented a trend towards the democratization of yoga insights and religion similar to the
Ashtanga vinyasa yoga asana practice, but also stated that the breathing should be deep breathing with sound. He reiterated this notion in a conference in 2013 stating, "You do normal breath, inhalation and exhalation with sound. Ujjayi breath is a type of prāṇāyāma. This is just normal breath with free flow". In 2014 published on YouTube, Manju Jois dodged the question, "What is the difference between Ujjayi breathing and free breathing?" by saying that "the breathing in Ashtanga should be long and deep with the sound like the ocean". He also states that if you don't make sound, that is okay, too. However