Why God Chooses Fire?

When god appears to his people, not exclusively, but a lot of f times, he shows up as fire. God chose fire because unlike wood, clay, sand and ice, fire is not shaped and formed by the touch of the human hand. When we put our hand into fire, we don't manipulate it, it manipulates us. The one who touches fire doesn't change the fire. The fire changes the one who touches it. So how does the conversation start? It's a detour,. How does it grow reverence, surrender, worship, take your feet off the sandals?, asks Dr. Rick Steves.