When you’re on the street, and, as you’re walking along, a woman turns the corner going away from you, and for an instant you have a glimpse of the side of her face, of the gesture of her shoulder, the shape of her body, and you are committed… You are in love for an instant, or your senses are rocked for an instant. That person then disappears and is lost to you forever. What you feel in that instant, that glimpse of something just out of reach, is what tells you to make a photograph. It is a feeling. That’s my physical equivalent out there. For a moment she fills that place that is always open, a place where sensation can reside for an instant…
Joel Meyerowitz - from The Ongoing Moment