It could be just the idea that a certain area is holy is enough to effect the mind for a profoundly greater experience.
I find with set and setting, that atmosphere matters more. The overall mind set you have I believe has a much grander effect on the experience then the physical location does. The only difference between being closed off in a room with plain white walls, and a maybe a small candle, verses an ancient cathedral is how you perceive each place.
I find my experiences with mushies are best when I get to explore a little of my surroundings, but the specific location I am in, personally, doesn't matter.
I believe it's up to each individual to figure this out for themselves.
Do not listen to anything, "Steely" says. He is a made up character that his owner likes to role play with. His owner is very delusional and everything he says is completely untrue and ridiculous.
Hate is the choice of a clouded mind.
-"It takes humility to remember who we are"-
"There has to be evil so that good can prove its purity above it." - Buddha