There are two things about this photo, first there is evidence of a very recent rain storm. In the desert that small puddle on the rock will evaporate in a matter of hours at the most. Second, there is a face on the rock. I see faces all the time in patterns on the floor, on rocks, on trees on nearly everything. This is called pareidolia and is a common phenomena. It is the same reason you see shapes in clouds. But there it is. Call it what you like. There is a frowny face on the rock.