I agree that they're two different things but I also believe that you really can't have one with out the other. If you have a happy life, odds are you have a meaning and a purpose, your'e not just wondering around hugging trees. And if you have a meaningful life, in your eyes, (like taking care of grandchildren, or teaching our youth) you're going to be happy. It's really all about perspective and I feel like that's why so many people today are unhappy.

A majority of people are depressed because their perspectives are messed up. They see something someone has and they think that the world owes them that.