I'm glad you brought it up. Depression is actually the closest thing to happiness. It's false happiness. Just like hate is the closest thing to love, it's false love. On the surface they look exactly the same. People with depression often have a lot to live for in their lives, and onlookers are stunned to learn that that person is so unhappy. It's because there is something, just one thing missing to make the whole thing work, one key to unlock it all. So close, but yet extremely far. And yet to solve it, you have to change everything, even when just one thing is missing to make it all work. It's truly mind-boggling.