A father once tried to talk to his son about how college was going: The father said, "How are things going?" The son said, "Good." The father said, "And the dormitory?" He said, "Good." The father said, "How are your studies going?" He said, "Good." The father said, "Have you decided on a major yet?" He said, "Yes." "Well, what is it?" asked the father. The son said, "Communication."

So it goes as parents and children try to talk to each other. So it was for the two sons in Jesus' story.