p. 311
न नश्वरं तदुद्भवे जगत्तमोनुदं च यत् ॥२॥
In plain words
It does not perish — and the moment it rises, the darkness lying over the world is driven off.
Close to the Sanskrit
That which is not perishable, and which, upon its arising, is the dispeller of the darkness of the world.