The very nature of a photographer is to capture moments in time, to preserve them for future generations. To create immortality in the form of a time capsule.
For the photographer themselves it may be an attempt at notoriety but for me personally it is a Zen moment. A moment in which the photographer literally steps into a realm that is separate from the rest of the universe, and observes life as if the only thing that exists at that moment is the subject being photographed and the photographer. In such moments the constant of time doesn't exist.
Depending on what is being photographed, time can pass either very quickly or very slowly.
As I photographed this blue Heron time literally seem to stop and what seemed like a few minutes in actuality was almost an hour. Literally sitting 10 to 15 feet away as this bird leisurely caught several fish and didn't seem to be the least concerned about my presence. The universe opens wide and says let me show you what is possible, if you simply allow it to happen, then time starts up again. You move on to your next shoot, your next subject and wonder if you'll ever have another Zen moment?