In the Bible it is said, "First was the word and the word was God." This shows what power the word has. If we control our speech, if we know how to use a word, we know the chemistry of life and how to utilize it to the best purpose. Sometimes a person can change a situation by one word, which another cannot change by using a hundred hammers. One can hammer at a rock and break it - that is the way of the hammer. And there is the way of the water. If the rock is in the way the water will not hammer at it, will surround it, will run smoothly over it and make its way over the top of the rock, and so will its waves proceed.