Human life must be so dull! The physical world is constantly changing, and 99% of it happens on the ground. I look up in the air every so often on my walks, and everything is pretty much the same as it was the day before. Trees, benches, buildings--they don't move. The ground, on the other hand, is a different story. The trash, the pee marks, the chicken wings, the leaves, the mud: completely different, every day. And in fall, well every day's walk is like a voyage to a new world. You spend a half an hour just kind of getting to know the leaf arrangement of one block, really digging in, sniffing, tracking, and then the next day: totally gone, replaced with an all-new landscape of leaves and nuts and dirt and pee. You could almost get frustrated, but you just have to take it in stride--nature is infinite and you can never hope to sniff it all, you can only enjoy today's smells and look forward to the wonder of tomorrow's. Sometimes I sit under the blankets at night and almost shiver in anticipation of the next day's walk. What will it smell like?
Maybe that's why humans are always travelling--they have to go to new places because they don't appreciate the part of the world around them that is new every day.