>>5029
>But if I feel a tingle in my hand whilst doing this magic 101 exercise there is no way for me to know it's not just something biological, a placebo (psychological), or actual progress.
>There's just too much room for doubt, the exercise isn't specific or measurable enough. A lot of these things are too vague because "energy" is too vague, someone can feel warmth, or cold, or a small muscle spasm and call it "energy".

You're going to run into a wall once you get to the elemental energy exercises of IIH if this is an issue for you.