Hatha yoga reverser, or to make breath flow into the center channel which forces bindu up. However, in later hatha yoga, the Kaula visualization of Kuṇḍalini rising through a system of chakras is overlaid onto the earlier bindu-oriented system. The aim was to access amṛta (the nectar of immortality) situated in the head, which subsequently floods the body. This goal is in contradiction with the early hatha yoga goal of preserving bindu. The "Hatha yoga pradipika" text dedicates almost a third of its verses to meditation. Similarly, other major texts of Hatha yoga such as "Shiva samhita" and "Gheranda samhita" discuss meditation.
Ashtanga vinyasa yoga six series are: Earlier practitioners of the style report that originally there were four series on the Ashtanga syllabus: Primary, Intermediate, Advanced A, and Advanced B. A fifth series of sorts was the "Rishi series", which Guruji said could be done once a practitioner had "mastered" these four. According to Sharath Jois, one must master poses before being given permission to attempt any others that follow. However, Manju Jois disagrees. According to Manju's accounts of his father's instruction, Pattabhi Jois also occasionally allowed students to practice in a non linear format. Many of Pattahbhi Jois' students now teach their Mysore