My second rule: Rewarding meditation takes a bit.
It's almost like learning you walk, but nobody can show you, and the talented can tell when an individual is successful.
There are mental understandings of how to do it that may not make sense in a mere explanation. (Despite that, I want to write a meditation book. Maybe a "beginner's memoir to meditation")

When you've spent enough time getting good at meditating, you can be ready to receive understanding of your problem like a stream, drinking enough to get it, or a mere splash will be enough to wake. I don't know if this is meditation, but nowadays I think it counts, because #3: