Karika 54

ऊर्ध्वं सत्त्वविशालस्तमोविशालश्च मूलतः सर्गः। मध्ये रजोविशालो ब्रह्मादिस्तम्बपर्यन्तः ॥५४॥

The Satva quality is dominant at higher regions, the tamas at neither region, and the rajas quality is dominant in the middle. Such is the state across the vast expanse of the universe.