Sadness is the name that they give to the resulting wariness, to the knowledge that the battle is lost and personal doom is at hand. Depression is the acknowledgement by the individual that something is so fundamentally wrong and dangerous in him - that there is no way to gain the upper hand. The individual becomes depressed only when he becomes a fatalist. But they very often go together. In many cases, the patient tries to exorcise his internal demons by adopting ever more bizarre rituals.
Depression is the most varied of all psychological disturbances.
It wears a myriad of guises and disguises. Many people are chronically depressed without even knowing it and without corresponding cognitive or affective contents. But all these poisoned garden varieties are all-pervasive. Not a single aspect of the human condition escapes them, not one element of human behavior avoids their grip. When this grip tightens we have melancholia - otherwise, we suffer from a mere depression.