But then how do you explain the fact that Buddhists, Sadhus, drugged up crusties, druids on mushrooms etc all get to the same planes?
If it's just the drugs, explain the Buddhists?
Just just make it easier to access - as 4.5k years of Hindu sadhus will tell you. But they don't create those states, otherwise Buddhists monks wouldn't get there. They are just a short cut to opening the door.