The problem is that all too often "staying busy" means becoming that much more disconnected from the people around you. That might temporarily alleviate the symptoms, but does nothing to address the root cause. Consequently, when the symptoms inevitably return, they usually return with a vengeance.
Agreed. "Staying busy" is another way of saying, "ignore it, maybe it will go away!".
It might be better said to not sit and dwell on what is depressing, but rather spend your time looking into what is causing it. Get busy facing it head on and fixing it.
Depression is a state of being dissatisfied, a lack of contentment. Find out why your disatisfied, what you don't like. You may find that what you felt you were missing wasn't something to be upset about. It was really a case of being unhappy you didn't get something., or don't have something, and that want was just that, a want, and not a need.
People tend to want the wrong things, and when they don't get them, they get upset. The problem is compounded by the secular motivational speech junk pushing people to succeed at XYZ. The whole "Power of Positive Thinking" ideology. They are being brainwashed into thinking they can have or do anything they want, which isn't realistic at all. So they fail, and get upset. And the positive thinking trap tells them to get back up, dust themselves off, and try harder next time, which is a setup for more failure, so they get depressed they don't have the life the Jones have.
The chase for earthly treasures is a path to failure, and it is that chase people get caught up in, all in the name of the love of money.