Nietzsche once said that the thought of suicide keeps many men alive in the darkest part of the night, and I would say that the more fully one comes to terms with the idea of rational suicide, the safer one will be from irrational suicide. Knowing that if I get through this minute I could always kill myself in the next one makes it possible to get through this minute without being utterly overwhelmed. Suicidality may be a symptom of depression; it is also a mitigating factor. The thought of suicide makes it possible to get through depression.
