If you let yourself go, allow every single sensation to pass right through to your brain, you can feel yourself the way you are. I do that sometimes, and I know myself in that instant, physically at least, every bone, every vein. And if you close your eyes when you do that, you aren't here any more, you're in that other place of peace. It can't be the inner peace that everyone talks about, but it certainly is one hell of a feeling, knowing just every bit of you. Knowing it.
No movement, yet it's some of the most trippy things I've ever done, and without any substance abuse involved. Give it a shot some time.