A Christian thinker asked me: "where did reality come from?" It's absurd to ask where reality came from. I shall explain. If one supposes that reality came from somewhere, its origin must be either real or unreal. It's absurd to suppose that reality came from unreality. Consequently, reality must have come from something real. But hold on - if that origin was real - then it was also constitutive of reality - and therefore reality (in your scenario of reality "coming from somewhere") would have existed before it existed - which is equally absurd. Consequently, reality must not have come from anywhere. QED.