You actually have me interested and I may get it. The drugs/religion connection is well known though. That's how a lot of people "saw god."
For example, I read recently that researchers found that the Oracle of Delphi, which in a religious context gave out supernatural advice, worked on gas. There was a fault line running right under the temple that was releasing Ethylene gas, which caused the trances and delirium in the priestesses.
I suppose there's a rather mundane explanation such as this for most religious phenomena.
The theories expounded on by Hunt are the subconscience's suseptibility to spiritual hijacking (so to speak) during drug induced trances OR hypnosis OR even meditative trances in the quest to "see God."
BTW, your "supernatural" example of the Oracle of Delphi's ethylene gas booby trap is reminiscent of that scene from the 'Mummy', isn't it?