In Sikhism, Sarav viāpak (literally "all-prevading god") is the omnipresence of God; since Sikhs hold to be without form, shape colour, etc., they see God as present in every living being in Universe.
Sikhism holds that creation is neither ex nihilo nor from materials lying outside God; it is the result of divine self-revelation by God. God has revealed or manifested himself in the form of the world. But God's being is not exhausted in this world alone, it goes beyond this world.
In Sikhism, creation is fully real. Because God is real, and the world is the expression of God, so it is also fully real.