Verse 64

वायुद्वयस्य संघट्टाद् अन्तर् वा बहिर् अन्ततः ।योगी समत्वविज्ञानसमुद्गमनभाजनम्

In plain words

From the striking together of the two breaths, within or without, at their end, the becomes a vessel for the rising of the of sameness.