When you are down, nothing can really make you feel like it is not your fault or that you don't somehow deserve the feeling. Except perhaps, at least among the people I know, this knowledge: That feeling of worthlessness, itself, is the symptom of a condition you have. That condition is called Depression, and Depression lies. So the depressed person can maybe make it through for a little while longer by trying to actively distrust their own feelings and thoughts and waiting for the episode to pass. If they wait long enough, the episode will pass. If they can't wait, they may end up taking their own lives, which is really the only other option they see in the worst moments of this disease. So recognizing that it is a medical condition for which you are not to blame could be very useful for people right on the margin of surviving a depressive episode vs not surviving. I hope this was not too much of a reply!