I'd definately add meditation. I think it's one of the principle building blocks (IMHO). The ability to observe thoughts, hold and focus on one in particular and keep the mind empty or blank are extremely valuble tools.
Personally I'd consider these foundation exercises required (or recommended) to fully use the other things you listed (well some of them). So Meditation could definately be added, especially in combination with breathing techniques.
Just my 3 cents.
PAX
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By a route obscure and lonely, Haunted by ill angels only, Where an Eidolon, named NIGHT, On a black throne reigns upright, I have reached these lands but newly From an ultimate dim Thule- From a wild clime that lieth, sublime, Out of SPACE- out of TIME.
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