Since, you have mentioned my profession, I will also share another word of wisdom:
There is no difference between a rock and a grain of sand. They are all the same, just different phases of life for a chemical compound called Silica (Silicon Di-Oxide). The only thing different between the two is time. Time is what make a rock and then the same rock a grain of sand.
When you are a geologist, you begin to think about time a different way.
I too think of time differently, as a photographer and an artist. I love the fact that we measure time by the emissions of a nearby star, and that is the very medium with which we can etch images onto light sensitive materials.
The only difference between a good photograph and a bad photograph is how you capture and manipulate that duality of time, light, and your environment.
A brilliant film. One of the few that made me, as a tough, "manly man wannabe" cry.