This is extraordinary - a combination of reading the brain waves of a person and feeding back information to a part of the body that can experience touch.
It literally is enabling people to walk again!
The operator's feet rest on plates which have sensors to detect when contact is made with the ground. With each footfall, a signal shoots up to a vibrating device sewn into the forearm of the wearer's shirt. The device seems to fool the brain into thinking that the sensation came from their foot. In virtual reality simulations, patients felt that their legs were moving and touching something.