Do they awaken any memories for you? Do it bring back any pleasant memory? Do you feel any nostalgia about bygone past? Does it provides you with a sense of happiness and sentimental longing when you look back? To what extent do you feel sentimental for the past? Do you reminisce about the good old days?
>>> No need to feel guilty/ashamed about it anymore if you do, it's more about the future than the past.