Interesting example of guerilla art using light as a medium. Not to mention the light in question was of 400 nipples to which were adhered to public art in Madrid. Its purpose was to emphasize how we tend to take our environment on a daily basis for granted. This stunt was to present to us how we can be living in an amazing environment and not be aware of it. Just a simple response to get us focused away from our routines to which in many cases destroys one soul .