Kind of a creepy episode that made me think about how some people make their own mental prisons like Matt suggested.  When things are going wrong in your life many people like to think of the better times and how they wish they could relive them.  However, what most people need to do is figure out how to make their current situation better rather than think about the past (which is likely better in retrospect than it was at the time).  I know I've thought like that in the past, but it doesn't help me feel better - just doing something to change the present and future helps out.