What had the Lady Jessica to sustain her in her time of trial? Think you
carefully on this Bene Gesserit proverb and perhaps you will see: "Any road
followed precisely to its end leads precisely nowhere. Climb the mountain just
a little bit to test that it's a mountain. From the top of the mountain, you
cannot see the mountain."

-from "Muad'Dib: Family Commentaries" by the Princess Irulan