The object of suicide is to stop the pain, emotional or physical, the person currently feels. Inflicting deliberate pain on yourself to achieve that end is a psychological hurdle that is next to impossible to overcome.
'Killing oneself is, anyway, a misnomer. We don't kill ourselves. We are simply defeated by the long, hard struggle to stay alive. When somebody dies after a long illness, people are apt to say, with a note of approval, "He fought so hard." And they are inclined to think, about a suicide, that no fight was involved, that somebody simply gave up. This is quite wrong.'
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Suicide Discussion
theforgotten