The Fremen have a simple, practical religion,” he said.
“Nothing about religion is simple.

Something cannot emerge from nothing.

I come only to ask a simple question. Is Muad'Dib's death to be followed by the moral suicide of all men? Is that the inevitable aftermath of a Messiah?

In 1054, the patriarch of Constantinople and the pope excommunicated each other.
That was the end of holiness for both churches.

When politics and religion are intermingled, a people is suffused with a sense of invulnerability, and gathering speed in their forward charge, they fail to see the cliff ahead of them

When religion and politics travel in the same cart, the riders believe nothing can stand in their way. Their movements become headlong - faster and faster and faster. They put aside all thoughts of obstacles and forget the precipice does not show itself to the man in a blind rush until it's too late.