[mandmandam]

I don't think you understand my argument - and I certainly don't understand yours.

My argument is wholly secular and realistic. It's summed up as 'exploration/play of mental states', which applies even to your flashing-lights-and-technicolor straw-man.

It doesn't rely on 'hypnotic movements' or 'rhythmic drumming'; or a monomyth, or cultural surroundings, or 'they did it thus it's natural'. Or flashing lights, or wastelands, or ancestral visions, etc.

Perhaps you could read my comment again, with a little more care and a lot less caricature.