We live our lives trying to enjoy. Enjoy our childhood. Enjoy our work. Enjoy our families. We live life in such a way, that when the time comes we can say "tell them, I've had a good life" whatever has happened.
We take photos, videos and mental captures of our finest moments, frame them and look back on them. Very quaint.
Yet, they just remind you of your past times and the mistake we commit is trying to embody ourselves in that very moment; when you're happiness overshadowed everything life had to throw at you. You try and fail, and merely want to go back to that period. We all do it, we tirelessly overuse "I wish" in our lives, and perhaps photos are the nail to (our) coffin.
They make us realise we're not eternal. Sure we could just go out and capture more memories, but there will be one day, where the leaves lay on the pavement, and we 'smile' at the photos infesting the mantel piece.
I look at the photos on my wall and, sure, I feel a little cold with happiness. But I am uncontrollably sad that, unlike the figures in the pictures, the people in them have moved on, leaving only their silhouette filling up the frame.
Just Enjoy Saving Silhouettes.