I think that those who serve most potently, work on levels of consciousness that have to do with radiating love — maybe God's love... It is important that you have a brain and use it, but that is secondary. The basic premise is that you allow something to come through you. Then you use your intelligence to give your heart's work discipline and logic. But the transformative energy, that which can change events, that heals, that helps, that serves, comes from somewhere deep inside.
"Tell me the weight of a snowflake," a coal-mouse asked a wild dove. "Nothing more than nothing," was the answer.
"In that case I must tell you a marvelous story," the coal-mouse said. "I sat on a branch of a fir, close to its trunk, when it began to snow, not heavily, not in a giant blizzard, no, just like in a dream, without any violence. Since I didn't have anything better to do, I counted the snow-flakes settling on the twigs and needles of my branch. Their number was exactly 3,741,952. When the next snowflake dropped onto the branch–nothing more than nothing, as you say–the branch broke off."
Having said that, the coal-mouse flew away. The dove, since Noah's time an authority on the matter; thought about the story for a while and finally said to herself: "Perhaps there is only one person's voice lacking for peace to come about in the world."