I find this topic very interesting because it gives a silver lining to people suffering from depression. I have seen cases where some people have been able to overcome depression without any form of professional therapy.
A case in point was this friend of mine who couldn't get a job after graduating from the university. He spent almost three years looking for a job without success. There were times he would confide in me that he was contemplating suicide. We encouraged him to try other means like self employment, and we had to resort to prayers as well. Eventually he got a job and is living a better life now.
In his own case the depression left when the situation in his life improved.
To answer your first question, I think your situation determines your emotional response. Take my friend for example, he was able to overcome his depression when his situation improved.
Hi @leczy :)
What a beautiful story! Yes, it is also important to keep in mind there are three main important factors that can give rise to depression: biological, psychological and social. Nowadays, I believe many people go through situations that are similar to that your friend went through. Unfortunately, however, not everybody is fortunate enough to have the moral support he had from a friend like yourself - who took the time to listen to him - and all the others who offered love and affection.
I believe if Mr. B had had that, his depression (most likely) would not have gotten to the stage it did.
Thank you so much for taking the time to read and share such an uplifting story with us :)
All the best!