Hi Scary Sheep,
Just commenting on your post about playing musical instruments.
I have played acoustic guitar as a hobby for many years. What I am certain of is the energy and molecular connection between the musician and their instrument.
When I have been in full POIS, my guitar playing sounds really poor quality, and I can't master the instrument in any way. When I am at my best "out of pois" phase, I connect very well with the guitar and the sound is crisper and I play so much better, and of course my confidence improves.
I know that this is true of all our activities and endeavors, dependent on what side of pois we are at, but I think musical instruments bring this out in a very specific way.