Stumbling on Sacred Ground

I accidentally found these images on a google search, looking for imagery for a design job. They were posted over at Wooster Collective and found in a neighborhood of Soho, New York.  I love it. I love that an artist on a mission in the middle of the night, graffitied a manhole into a mandela with their chosen medium of  petals and seeds and rocks, to be left for discovery by wandering pilgrims on foot and by web.