Verse 55

अन्यच्च श्रृणु मे राम स्पन्दो नाशस्य कारणम् ।विकारः स च चित्तोत्थो वातजो वा जगत्स्थितौ

In plain words

Hear one thing more from me, Rāma: spanda is the cause of destruction; and that disturbance is born either of citta or of the vital wind, in the maintaining of the world.