The more I can mentally divide my identity, the more sane I feel. If I create distance from thoughts and the person doing the thinking, I have room to breathe. The more I can detach and watch the emotions playing out, the more peaceful I am. How does that work? Shouldn't I feel more scattered? But the insanity comes from keeping it all together, in one container.
@Fritillaria
I don't know how it works, but this seems recognizable from your description of watching "another person" doing the thinking:
https://psychcentral.com/blog/archives/2013/03/27/how-i-use-mindfulness-to-help-with-hypomania/
I'm an uncredentialed "walking meditator", myself. Thoughts arise, pass, and then fall away like the landscape; and things seem more settled when I am done. Dog takes me for a walk every day, and I'm better for it.