1. 64

    वायुद्वयस्य सम्घट्टाद् अन्तर् वा बहिरन्ततः । योगी समत्वविज्ञानसमुद्गमनभाजनम् ॥ ६४ ॥

    From the fusion of both vayus (prana and apana) inside or outside (the body), the yogi attains equilibrium and becomes fit for the proper manifestation of consciousness.