Religion, evolution, and the ecstasy of self-transcendence

Here is one of the best TED talks videos have seen in a long time. It is titled Religion, evolution, and the ecstasy of self-transcendence and is given by Psychologist Jonathan Haidt.

Haidt asks a simple, but difficult question: why do we search for self-transcendence? Why do we attempt to lose ourselves? In a tour through the science of evolution by group selection, he proposes a provocative answer.

Please don't be put off by the word 'evolution', haidt leaves the door open for the Spiritual in his talk, so it's one of those rare moments when athiests and the religious can both take something away with them from it.

The last 3 minutes of the talk are realy quite excellent, watch right to the end

The word 'evolution' doesn't scare me off, but the term 'group selection' gives me the willies.

Any chance of being able to provide a textual summary for those of us who can't or won't watch videos?