  What do you need to be happy? Now that I have a son, I think I need to know that he's healthy to be happy. Of course, I personally need to have enough food, water, a warm shelter, and friends to be happy.
There are certainly many other things that make life rich: spending time in nature, listening to good music, etc. I can go without these things for awhile, but stress often builds up if I don't enjoy nature or listen to music for too long. I have to say, that given how lucky I am, I am almost always happy. I'm happy to be alive, and want to enjoy every day fully. So, most of all, I need to be alive to be happy! (I'm not sure if dead people can feel happy...) 
