During the second half of a long train ride, I began to look around at what I could photograph. The first portion was filled with new sights. But on the return trip, we changed sides (required) but all we could see now was vegetation covered hillsides. And soon, I began to wonder. What if? What if I slowed my shutter speed and the ISO way down. The railroad car swayed and rocked and I made little attempt to hold my camera still. I would check the image on the back of the camera after each exposure and make further adjustments that could create a different effect. Those who sat near us asked what I was finding to photograph and that so clearly had interested me with dozens of exposures. I would show them, and they would just shake their heads. What do you see, they would question further. Light! And motion! And a train trip.