 Not so that you could sort of plan your itinerary, but he tells us these things beforehand. We read in the 33rd verse of chapter 16 of the Gospel of John, so then you may have peace. In this world you will have trouble, but take heart, I have overcome the world. In other words, the Lord tells us these things to reassure us and to let us know he's not abandoned us and he's in control of us.