But is there some perverse node in our psyche or even in the cerebrum which gets turned on by certain types of religious thinking? I reason that the idea of belief in a certainty of religious hope is made 'real' to believers by others demonstrating it by laying their down lives --and taking pleasure in doing so.
Yes I think it's all about the belief in life after death and as you say it's made real to believers by watching others gladly lay down their lives.
It has always been believed that life after death is a reward a person has to strive for either in a life of self-sacrifice, adherence to religious rules or through a martyrs death.