It is significant that the Latin word "templum" originally meant a vast space, open on all sides, from which one could survey the whole surrounding landscape as far as the horizon. This is what is meant to CONTEMPLATE: to "set one's sights on" Heaven from the temple that defines the field of vision... The temple is the place, the organ of vision.
True meditation is about waking up from the dream of separation to the truth of unity . . . awakening to the realization of what you and everything actually is, the oneness of all. To perceive everything as one is not an altered state of consciousness; it's an unaltered state of consciousness, the natural state of consciousness. Enlightenment is the natural state, the innocent state which is uncontaminated by control or manipulation of mind. We wake up by allowing ourselves to rest in the natural state from the very beginning . . . by "allowing everything to be as it is."