I think MLC is not only a problem of identity crisis, it's also a problem of "maturity" crisis. The S is unhappy with life. It happens to people who think that happiness should be given to them by someone else. They aren't matured enough to understand that happiness is a choice. You chose to be happy no matter what. Happiness is inside, it's something that we give to ourselves. When you understand that you also realize that the problems, the difficulty of life are temporary, they cannot take our happiness from us. You become mentally positive and see the good side of each difficulty and focus on the positive. As a glass fills half with water may be seen as half full or half empty depending on our state of mind. MLC may be avoided. It is not inevitable. However, it could only be avoided when we understand those truths. Those truths may be found in us and when we allow ourselves to be surrounded by good books and by good people.