There is simply no way to disentangle your existence from your past. Past always stands in a meaningful way to our present. To a good extent, our present circumstance is a pure consequence of our actions in past. Sometimes, it is not easy, not even possible, to undo the changes made in our lives in the past.

Cherishing the good memories of the past has nothing wrong with it. In fact, it is highly desirable to remember the sweet times of our life as they, in a way, reenliven the experience in our minds.

However, too much dwelling on the past is also pathological. This is exactly the point nomerci is making most probably. Sometimes, we have a tendency to ruminate and this tendency is bad regardless of whether the memories or positive or negative. If they are positive, we somehow feel that we have come in life to a point that is inferior to the past. If they are negative, we seem to mourn sorrows that do not even belong to us anymore.

The best and balanced approach is to cherish the good memories once in a blue moon, to analyze the past and see what was good in it that could be repeated and what was wrong which must not be repeated. We must not dwell on our achievements and mistakes--- we must learn from them and move on.

at Spock: I am sorry, I could not get you?