This therapy is a simulation elimination therapy. The patient floats in an inclosed dark tub filled with salt water, a float tank. There is no sound or light and the body can relax without having to support it’s self against gravity.
I did a float and it was painful. I’ve heard amazing things about it, but for me the PH in the water was so low that my private area did stop burning the whole time. I had also shaved my legs and, boy, did they burn. My friend who did a float in a tank next to mine had the same experience.