There is an old story about a Teacher who was asked by his disciples: “How can we determine the hour of dawn, when the night ends and the day begins? Is it when from a distance you can distinguish between a dog and a sheep?”
“No,” said the Teacher.
“Is it when you can distinguish between a fig tree and a grapevine?” asked the disciples.
“No,” said the Teacher.
“Tell us then,” said the disciples.
“It is,” stated the Teacher, “when you look into the face of another human being and you have enough light to recognize that person as your brother or sister.
Until then it is night, and the darkness is still with us.”