Most people who experience depression believe themselves to be "bad". Maybe not all the time, but certainly when they're depressed. For some it is so pervasive they feel themselves to be evil, bad to the core, even that others would be better off without them.
People often think of depression as sadness that can't be shaken, misery that never ends. But depression is much more than just an emotion, even though it can look like sadness, it is much more complicated than that.
So how does "I'm sad" become "I'm bad"?
None of us are born with set ideas about ourselves, but we are all born with emotions that are inextricably part of us. Our feelings are "us". How we feel about things is by its very nature, personal.
Yet, we all have different levels of comfort with expressions of sadness, pain and vulnerability. As as a culture, New Zealander's are a stoic bunch. Remember Sir John Kirwan's breakthrough book was called "All Blacks Don't Cry".