I&#x27;ve seen the same thing happen to a number of people.<p>It&#x27;s simply people who only know how to live as if they&#x27;re on a combat mission.<p>Once they come back home and there are no bullets buzzing by, they realize they don&#x27;t know what they were fighting so hard for - they realize they don&#x27;t know how to live a &#x27;normal&#x27; life.<p>My dad is like that - when he has free time, he does nothing with it. When he doesn&#x27;t have free time - he wishfully speaks of winning the lottery and having free time.<p>I have a theory that people who believe life is about strife and that everyone&#x27;s out to get them - when they finally reach a place where there&#x27;s no strife and no one out to get them, they still continue fortifying against enemies that never come.<p>The ridiculousness of fighting invisible enemies causes depression. It&#x27;s simply a call to open up, to see that there&#x27;s more to life than fight or flight.