It really is vital to take the time to grieve your dead dreams, hopes and illusions. Those deaths, while far more abstract than the actual death of a loved one, are no less real. In some sense, even more so, as they are the parts of ourselves we need to say goodbye to, and let go of, in order to properly move on. If we don’t, then we carry those invisible corpses with us wherever we go, slowing us down, making us bitter, resentful and sad.