Verse 35

द्यौः क्षमा वायुराकाशं पर्वताः सरितो दिशः ।अन्तःकरणतत्त्वस्य भागा बहिरिव स्थिताः

In plain words

Sky, earth, wind, space, mountains, rivers, and the directions stand, as it were, outside -- yet they are but portions of the tattva of the antaḥkaraṇa.