Wikipedia features article: The Buddhabrot
When you rotate the photo 180 dregree, it become a depiction of Buddha, but right form this angle, you see a devilish screaming face. It is suppose to remind us of Heaven and Hell, the two aspect of Human life.(Link)
If you know Mathematics, this image can actually render it from a Mandelbrot set, just follow the equation of the aritcle, for some people, this might consider a sign itself.