In early times in Japan, bamboo-and-paper lanterns were used with candles
inside. A blind man visiting a friend one night, was offered a lantern to carry
home with him.
“I do not need a lantern,” he said. “Darkness or light is all the same to me.”
“I know you do not need a lantern to find you way,” his friend replied, “but if
you don’t have one, someone else may run into you. So you must take it.”
The blind man started off with the lantern and before he had walked very far
someone ran squarely into him. “Look out where you are going.” he exclaimed to
the stranger. “Can’t you see this lantern?”
“Your candle has burned out, brother,” replied the stranger.