For this option, Lux needs to know if there are any medical conditions that she needs to keep in mind. Trampling is possible with bare feet or with heels.
This option is for some a part of pain and Impact play read more about in there.
For some people, it is not the link to impact, or pain play but another variation as feeling pressure is a sensory experience which for some people will help them relax. This is also often seen in other fields of psychology where they use weights in blankets, etc for people who have anxiety. As for others it might be more linked to the shoes and feet or the feeling of being small laying there on the floor surrendering.