A minister tells of his first Sunday in a new parish and of presenting the children's message. It seems the sanctuary in the new church had some magnificent stained glass windows, so his message centered on how each of us is called to help make up the whole picture of life (the life of the community of the faithful). Like the pictures in the windows, it takes many little panels of glass to make the whole picture.
And then he said, "You see each one of you is a little pane." And then pointing to each child, "You're a little pane. And you're a little pane. And you're a little pane. And..."
It took a few moments before he realized why everyone was laughing so hard.