I think it's a little simplistic to equate suicidal feelings with loss of pleasure or loss of comprehension of it. There are many factors that might drive a person to the act, as I know from personal experience.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
