The Problem of Higher State of Consciousness

We want a theory that's both descriptively adequte and prescriptively adequate. A descriptive theory should tell me, give me a good explanation for why these higher states of consciousness have the experiential feel they have. We need an account that explains why it might be considered rationally justifiable that these states authorize and legitimate such transformations. Can we see why these states should be listened to when they claim to give us access to a deeper reality?