To perform asana correctly in Ashtanga yoga, one must incorporate the use of vinyasa and tristhana. “Vinyasa means breathing and movement system. For each movement, there is one breath. For example, in Surya Namskar there are nine vinyasas. The first vinyasa is inhaling while raising your arms over your head, and putting your hands together; the second is exhaling while bending forward, placing your hands next to your feet, etc. In this way all asanas are assigned a certain number of vinyasas” (“Ashtanga Yoga”).
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