Most of the training for "astral sparring" consists of listening to the theme from Highlander and closing your eyes. Maybe clenching a fist if you want to really get into it.
You can't just make dimensions willy-nilly! What do you think you are, a string theorist?
DO NOT FLY, GODDAMN IT
It's likely more of a "fetal position while jocks punch me and look through my wallet" kind of thing.
Once I had a dream where I fought Eddie Murphy.
MOOOOOOM GET OUT OF HERE I'M ON THE COMPUTER
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