I like to think that any experience you have in life when you are fully connected to the moment, be it consensus reality, hyperspace, dreaming, etc, is just as real as each other, they are probably just separate expressions of the true underlying fabric of reality as interpreted by the human mind. Regardless of if it was brought about by natural means, chemical means or deep sleep/ meditation, any level of awareness where you are completely involved in the experience is valid in my eyes. If it feels real it is real...
Peace and happy traveling.
"The love I've made is the shape of my space"