(This isn’t about medically diagnosed depression or other psychological issues. Although, it could be for some. Seek professional help.)
Are people sad or so addicted to trying to be happy or fear of sadness that they don’t know it’s OK to be sad? And that there can be a happiness in being sad. There’s such an addiction to being happy it’s sickening in itself. Hearing people talk about topics of their life, like relationships, there’s usually the friend that says “Yes, but are you happy?”. As if the answer to that makes it OK that your life is a train wreck morally. Or that he only hits you once a week which is less than the last guy.