Okay, this is seriously awesome. I can't imagine being able to tell people that you've walked through fire unscathed. That's definitely something for the bucket list!
It's interesting to note that in some cultures, like for the Indians, they do this as part of a ritual thing. Thimithi is their fire-walking festival. I'm sure there's a huge tourist attraction in India where it's practiced.
Similarly, in my home country Singapore, we have a yearly procession for the Indians who celebrate Thaipusam and it's normally a real photo opportunity for people who come to our sunny island.
I'm actually pretty sure that the majority of the ritual involves preparation - meditation and fasting - to show a devotee's willingness to suffer for their beliefs.
It's interesting to see just how far someone would go for their religion, and some of these "costumes" are really quite the epitome of dedication...