स्फुरत्यस्मिञ्जगत्कोशे जीवो व्योम्नीव मारुतः ।नियत्या विहितं कुर्वन्कदाचिन्नियतिं चरः
In plain words
the jīva flashes forth within this sheath of the world, as wind within the sky — carrying out what niyati has ordained, at times himself the one who moves niyati along.