— so; — by will; — pervaded, entered into; — so; — by the triad of powers; — and; — in this and that way; — abiding; — as the existing things; — therefore; — everything; — has Śiva as its self
So, pervaded by will and by the triad of powers, (Śiva) abides in this way and that as the existing things; therefore everything has Śiva for its very self.