Einstein told us that our universe is shaped and defined by light. We live in a visual cage, and what we call time is simply the ever-moving shadow of the bars which confine us....But suppose that...we were able to outrun the waves of light which undulate across the universe. As we leap...across the galaxy we overtake and leave behind the light which left the surface of the earth...the image will travel forever in this everlasting night, seeking its home among the stars, reaching ever outward toward some hypothetical destination at the universe's problematic end. Is light, then, the stuff our souls are made of?
An old Rabbi once asked the pupils how they could tell when night had ended and day had begun.
"Could it be," asked one of the students, "When you can see an animal in the distance and tell whether it is a sheep or a dog?"
"No," answered the Rabbi.
Another asked, "Is it when you can look at a tree in the distance and tell whether it's a fig tree or a peach tree?"
”No," answered the Rabbi.
"Then when is it?" the pupils demanded.
"It is when you can look on the face of any man or woman and see that it is your sister or brother. Because if you cannot see this, it is still night."
~ Hasidic tale told in PEACEMAKING DAY BY DAY by Pax Christi 0966628551