They work for me. And there are two prevailing thought processes (i.e. belief systems) that I know of that underlying the techs, which are varied: That you can create from the getgo, or that you can choose an outcome from the quantum foam, virtual reality, or alternatives space, whatever you call it.
You either create or choose.
Direct consciousness (or to some, mental energy) is what determines where your attention goes. Affirmation directs this energy/thought.
Of course, if you don't believe affirmation works, it's not going to work for you.