Mirror Lake will make a procedurally generated bowl for you. Sometimes the bowl is empty, which sounds like a parable, but mostly it is just a bowl. Sometimes it is in space.
Click again, and you'll be greeted with another bowl. Other features of its landscape may include: mountains, trees, stones, ponds, birds, comets, planets, stars.
Mirror Lake was created by Katie Rose Pipkin for the recent Procedural Generation Jam, which encouraged people to make generative games, tools and art—to "make something that makes something." In this case, hauntingly pretty monochromatic space bowls.
If you want to see Mirror Lake in all its odd glory, trying expanding it to full screen; make sure the sound is up so you can hear the ambient hum. Even the bugs are nice to look at:
— katie rose (@katierosepipkin) November 13, 2015