As we travel through our lives, we store up a treasure trove of memories. We can find physical reminders in the form of a souvenir from a vacation, a photo of a loved one, videos, a hand-written letter, a greeting card, or a thousand other whispers from days gone by.Old photographs are snippets of time we store as treasures of the heart. They are reminders of who we once were.Our brains have stored up millions of "snapshots" from different times in...