There are a lot question the Bible doesn't answer about the Hereafter. But I think one reason is illustrated by the story of a boy sitting down to a bowl of spinach when there's a chocolate cake at the end of the table. He's going to have a rough time eating that spinach when his eyes are on that cake. And if the lord had explained everything to us about what's ours to come, I think we'd have a rough time with our spinach down here.