Verse 37

शक्तिर्निर्हेतुकैवान्तः स्फुरति स्फटिकांशुवत् ।जगच्छक्त्यात्मनात्मैव ब्रह्म स्वात्मनि संस्थितम्

In plain words

Śakti, causeless indeed, flashes forth within, like the gleam of crystal. The Self itself, by itself, as the śakti that is the world -- Brahman -- stands established in its own Self.