Awesome video. Kind of related to this, I have been trying meditating on the breath recently. I think part of the cause of my dp could perhaps be the distrust of my bodies own internal mechanisms. The brain can't possibly include all of our experience at once because everything cannot be contained in conscious awareness. So we make a best guess as the guy said. So during my weed panic attack my brains best guess was "this is bad. I'm breathing too fast. I don't trust my body". So from that I desperately tried to control my breathing, hold my breath, slow it down and go against my bodies natural internal mechanism. This is no doubt in my case related to trauma and was a coping mechanism. So my technique is to watch the breath in the nose and do my best not to move or control the breath.. extremely difficult to not control it as the sensation to breath is strong. But more and more I am breathing naturally. And maybe hyperventilation is involved with my dp