These branches support each other. Asana practice must be established for proper practice of pranayama (breath control) and is a key to the development of the yamas and niyamas. Once these four externally oriented limbs are firmly rooted, the last four internally oriented limbs will spontaneously evolve over time.

"Vinyasa" means breath-synchronized movement. The breath is the heart of this discipline and links asana to asana in a precise order. By synchronizing movement with breathing and practicing Mula and Uddiyana Bandhas (locks), an intense internal heat is produced. This heat purifies muscles and organs, expelling unwanted toxins as well as releasing beneficial hormones and minerals. The breath regulates the vinyasa and ensures efficient circulation of blood. The result is a light, strong body.

There are three groups of sequences in the Astanga system. The Primary Series (Yoga Chikitsa) detoxifies and aligns the body. The Intermediate Series (Nadi Shodhana) purifies the nervous system by opening and clearing the energy channels. The Advanced Series A, B, C, and D (Sthira Bhaga) integrate the strength and grace of the practice, requiring higher levels of flexibility and humility.

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