The Mountain with the Burning Bushes!

Why do brains sometimes interpret a symbol differently from its original meaning? Believe it or not, what I see is a mountain with a burning bush on both sides of its slopes.

Was it the way the symbol was drawn or the way I just focused on the symbol disregarding the other cues around it making it “ambiguous” subject to my brain’s own interpretation of what the symbol is? Try to cover everything and let the symbol stand by itself, what do you see?