A myriad bubbles were floating on the surface of a stream.'What are you?' I cried to them as they drifted by. 'I am a bubble, of course' nearly a myriad bubbles answered, and there was surprise and indignation in their voices as they passed. But, here and there, a lonely bubble answered, 'We are this stream', and there was neither surprise nor indignation in their voices, but just a quiet certitude.