Beauty is like that, too. So often it flashes and vanishes before we know what's happening. Even with great focus and concentration, the most we can hope for is the memory of the florescence. Cameras help. snapping the moment into a frame that reminds us of the feelings, of the day.
When I paint, I also am trying to capture the feeling, the moment….when we turned a corner in Venice and were awestruck with the sight: (photo on left, painting in progress on right)