Bezalel was charged with constructing the Mishkan, and Moses reports that God “filled him with a spirit of God in wisdom, in understanding, and in knowledge, and in every task, to devise plans.” Why was he chosen? He was a grandson of Hur, who the Midrash posits, was stoned to death after he challenged the golden calf. The Meshekh Hokhma explains that Hur showed great self-sacrifice and like all such acts, it was irrational. His reward was a grandson filled with rational thought, a man who was able to devise a plan and see it through. Indeed, sometimes true understanding starts with a momentary flash that transcends reason.