It reminded me of when I first felt my feet really grasp the ground. I felt like I had monkey feet. All around the edges of the soles, heels, and toes grasped the floor (and still do). I felt much more grounded when this occurred. I can't say I feel more grounded when crawling, but I did notice a change, and it's the second real change I've noticed (after the hips feeling looser). I don't know if there are crawling stages like there are creeping stages, but if so, I'm hoping the looser hips and flattened out hands are considered part of an advanced stage.
My brain doesn't seem any different from what I've previously mentioned. I haven't had any major epiphanies lately, but I'm looking forward to noticing more changes as I move along.