The way we perceive and remember events is unique to us. Two people can share a unique and pleasant experience together and yet walk away with different memories of that event. Let us say that a couple had a wonderful date together. This does not mean that they will have the exact same view or memories of events. Their memories might focus on different parts of the date that matters to them. As time passes, they might remember the date in different ways for different reasons.
Memories are unique. It links our past, present and future together with all those who are a vital part of our lives. But the sad truth is that no one will really know what our full thoughts and memories are except ourselves. That is unless we do something about it.