If you have ever experienced the sensation of missing something, or cringing at a past decision, or regret for prior actions – all of this is good. These are good things, because they mean your life is changing in meaningful ways.
A life with no regrets is a life with no lessons. A life where you never lose anything means you never had anything worth losing, because loss is inevitable. If you never thought you used to be an idiot, you probably still are.
So don’t expect to look back and see paradise. That only means you left paradise! Instead, hope to look back and see wrack and ruin. That means you left it behind.
The Opportunity Machine 