Yesterday was the first sunny day we'd had in a while. Instead of rising in a sky mostly obscured by clouds, by 8:00 a.m. the sun was already a big white ball in a blue sky. It's not the kind of sun you can take pictures of.
Grapes, however, you can take pictures of. And I do. It's part of the "record-keeping" I like to do with my camera. New year, I'll be able to look back and say "Look, on September 8, 2008, the grapes were already ripe." Or just starting to ripen, or whatever. And I'll know it was a sunny morning.
It's like our keeping track of the daily high and low temperatures, and the amount of rainfall we get each month. We live life on natural rhythms, now, recording them helps us to understand them.