 The Israelites wandered for 40 years in the desert. All that sort of stuff. Usually these 40-day periods are times of testing, trial, education sometimes. In the case of the Israelites needing to learn how to trust God, Jesus is teaching his apostles what they need to know for the mission that's coming up. So that's the first thing. It's the end of this 40-day period before Jesus ascends into heaven. The second thing about it that's really important for us is that the ascension is...