All is one life and one light. When by concentration of thought and feeling upon the condition of a friend a person has opened up a way for the light, he is connected with that friend and knows all about his condition. You will say, "If all is one then we should be always sad and suffering from the unhappiness of others!" It is one light, but there is the shade between, isolating each and therefore we are not so much aware of the unhappiness or joy of others. And yet unconsciously its effect is felt. During the war the bloodshed was going on at the front, but he who could see, could see its effect here and everywhere.