The shadows on this image look like they are being reflected from some sort of blinds/windows. the fact that the photo is black and white it makes the shadows and light on the persons body stand out a lot more with a really good coordination of stripes.
The symbol is a unalome, a representation of the journey to reach enlightenment. The path starts in the centre of the spiral, and as you continue up or down this path you are wandering, becoming more conscious of your surroundings. When you reach the top