Islam’s Martyrs to Self-Pity

The young would-be terrorist seeks to soothe, repair and avenge his personal grievances by identifying with a larger historical grievance, that of all Muslims. Thus petty personal grievance takes on a reflected glory and self-pity, the near-universal characteristic of adolescence, is ennobled

I can easily understand why someone might want to kill himself and why he might want to kill others; but I find it somewhat harder to understand why he would want to combine the two. I suppose that if you really believed that it would gain you immediate access to the perpetual pleasure garden that is the notion of heaven that most contemporary suicide bombers seem to have, it might just explain it; but that only pushes the problem one stage back, to the question of how it is possible for people truly to believe such a thing.