Dont think it makes any sense at all duncan really
I think this is a very interesting question. If you saw a macro photo of a flower for instance would this have a meaning or is it just a portal through which the photographer expresses what inspires him? we are all moved by different things, beauty, expression etc and some photos may well trigger memories of one kind of another. I think any true meaning stops with the photographer as we the viewer can never truely understand his motives for taking it. SOmetimes though like Duncan says a flower is just a flower