Consciousness cannot be raised, lowered, altered, expanded or paused; only the objects within it are subject to change.
The author of the popular book 'How to Change Your Mind' has made a great scientific case for psychedelic substances, but his underlying assumptions may be misguided and become a new impediment to consciousness exploration.
Are there any unobserved events in the universe, let alone on Earth, or an actual universe at all?
Perhaps all medicine is just a ritual to prepare the mind for perceptual shifts.
Consciousness, psychedelics and sacred texts.