There's actually a legit term for this. It's referred to as dissociative art.
To the brain, it's almost the same as taking some dissociative drugs..
a class of psychoactive drugs which are said to reduce
or block signals to the conscious mind from other parts of the brain.
In other words - your mind is just dipping out for a while.
This is said to be unhealthy mentally but I question that.
I feel like I need that every once in a while to keep me sane.
However, such are the words of an addict. Hmm...