What I Feel is the Core Reason for Depression

Ultimately, you can throw medicine at depression, but the root problem is what's causing it. For instance, if someone's mother had died, then you'd have to say that the mother dying is the problem and the medicine or other treatment is trying to patch stuff up. Anyway, have people really tried to treat the core problem and if that's the case, then why would they need medicine for depression?

Well, let's look at relationships, if someone is depressed cause their spouse cheated and left them with no possible way of reconciliation, then medicine will help, but ultimately the depressed person has to get over it and move on and, in that case, medicine wouldn't be needed after the last stage.