Yoga Sutra 3.31Kúrma-nádyám sthairyam Stability [comes from saṁyama] on the tortoise nadi The thoracic cage and sternum or “heat centre” and diaphragm...
Yoga Sutra 3.29nābhi-cakre kāya-vyūha-jñānam Knowledge of the arrangement of the body comes from saṁyama on the navel centre The cakra’s (literally...