32. In Fiji, the firewalkers perform on pumice after going into a cataleptic trance. Why is pumice especially suitable?

Pumice is used for cleaning foot. Foot are wet with warm water and then scrub by pumice so that hard and dry skin can be removed. It is quite effective in cleaning skin.

Pumice is also used as light weight material in concrete mix. Due to it porous texture, it is a good light weight material.