The idea that our reality is a simulation is a debased form of theism. In either case there is an ultimate motive for reality which lies in another consciousness, or an Other consciousness. For the believer in the simulation this other consciousness while vaster than what we know is of essentially the same kind, its foundation being outside of itself - and hence its need to experiment - whereas for the theist the creator can be both in-itself and for-itself and the creatures still ends in themselves. Either way the notion gives imperfect form to a metaphysical question which can't be formulated but needs to be formulated. If you strip away the metaphysical machinery, however framed, you are left with the inner mystery of consciousness being the same as but also prior to the mystery of existence, its alien kinship. Your life is not the solution to this mystery but its husk which with all the forces of its nature resists being cracked open.