Life lessons, things that are supposed to make you stronger. Here's a question for you though. If you make a similar mistake or even the same mistake. Is the negative result a life lesson. In my opinion this scenario would actually be a consequence. Yes that's right, a consequence that results from you not learning from the first life lesson. Funny as it may sound, I'm finding that I'm facing a lot of recurring life consequences as a result of not learning from my original life lessons.
