Henry David Thoreau wrote, “Could a greater miracle take place than for us to look through each other’s eyes for an instant?” –Henry David Thoreau. Also, there was a Zen saying that “God is Asleep. But when two people meet and smile and look into each other’s eyes, God Awakens”.
The persons that you meet on a daily basis are not really your “strangers”. Every soul you meet is really your brother and sister. All have the same worries, insecurities, and fears. Sharing a smile and sharing a nice encounter where both people come off happy goes a long way in making the world a better place.