Seeing shapes, colors, shadows, textures. Rocks and stones on which lichen live and grow. Imagine the rocks as liquids deep in the Earth millions of years ago. Imagine them tossed and ground by miles deep ice. What a gift to be able to enjoy the many simple relationships in these rock and stones by a stream.
Still Learning To See 
Wonderful shot John. This reminds me of the stones we found in the river bed we navigated in Alaska in a raft. We have a few rocks from the trip and they are all very different just as we all are as people for sure.
Dave