Is it true that some people in India can walk on fire? Doesn't it scare you or astonish you?

I have twice had the opportunity to witness such a performance. I was not afraid because fortunately I was not one of the performers. And I was not astonished because I was aware of the power of faith. They had a tremendous faith in Govinda (Lord Krishna). Chanting the name of Govinda with intense devotion, they walked unscathed over the fire.