MisterE, it is useful to consider one's own skin when addressing this topic. The psyche is constantly renewing itself, and it sheds the old skin in tiny flakes, which are all over in your bed, clothes, etc right now. When you shower, you washes bits of your psyche away. Your life is continuely renewed, and its not worth wallowing in yesterdays errors, when there are plenty of new ones you could be making today. However, I suppose, that todays error could be wallowing in the errors of yesterday, which could then enter you into a mobius loop. My advice would be to avoid this if possible. Try to focus on the love, and less so on the negative destruction.