If God is a delusion, then perhaps it's a purpuseful one:
The evidence from Turkey suggests that the pilgrimage impulse, the collective worship impulse, the sacred space impulse, are all supra-natural, if not super-natural. There is something within us, not necessarily from outside us, which compels the building of Gobekli Tepe and places like it. That "something" is not simply accounted for by the usual explanations which seek to explain, or, too often, explain away, people's attachment to religious expression.
That conclusion, if correct, means that religion needs to be taken a whole lot more seriously by many of the people who read this section, especially those among them who constantly insult the religious impulse. It also means that those who assume that religion belongs to one group, one understanding of God or Gods or one particular scripture, would do well to practice more modesty about such claims.