If you have a willing partner or even a family (blood or otherwise) member you can get a leg up on learning to move on the ground using this. Lie on the ground and have him or they take one leg or any limb and start to walk with it changing directions as he wants. Your job is to stay with him and untangled. feel how you can nagotiate the floor and use it to keep your sight of what is going on around you and stay moving. If you have trust and enough experience you can do this using the head or even eliminating arms or legs using ropes or any other tool. You can poke your partner using a dull knife so he evades and than do so as you aldo lever him in some way or simply sit on him. We move around all day carrying all this mass so why no use it ? Drop on his back or lower belly. If he takes your balance away you can fall on top of him while avoiding the hard parts. Don’t forget that the head is easy to crack and has very little in way of sole reaction. Keep your learning fun and you will know that your mind is also healthy. Without that you are destroying parts of you and that will show eventually.