Thanks Perna and I found this portion very enlightening:

{"Fifth, we have an innate, elevating need for purity and sacredness. This foundation, rooted in our central moral emotion - disgust -- turns us from animality toward the divine, and explains our perennial taste for religion (of which some forty thousand have been created to date). Like the other four moral receptors, this hunger for purity can be abused when an individual, nation, or faith plays on our disgust reflex by portraying enemies as morally impure, as in the case of anti-Semites and homophobes."}