Hatha yoga are two forms of hatha yoga: one practiced by Yajñavalkya consisting of the eight limbs of ashtanga yoga and another practiced by Kapila consisting of eight mudras. Currently, the oldest dated text to describe hatha yoga, the 11th century CE "Amṛtasiddhi", comes from a tantric Buddhist milieu. The oldest texts to use the actual verbiage of "hatha" are also Vajrayana Buddhist. In the 20th century, hatha yoga, particularly asanas (the physical postures), became popular throughout the world as a form of physical exercise, and is now colloquially termed simply as "yoga." According to the Indologist James Mallinson, some Hatha Yoga
Ashtanga vinyasa yoga the teacher is to guide as well as provide adjustments or assists in postures. In other locations, twice per week Mysore-style classes are now substituted with led classes, where the teacher takes a group through the same series at the same time. The inclusion of two led classes per week was only included in P. Jois' senior years. Usually an Ashtanga practice begins with five repetitions of Surya Namaskara A and five repetitions of Surya Namaskara B, followed by a standing sequence. Following this the practitioner begins one of six series, followed by what is called the closing sequence. The