As the mechanical working of nature raises the vapors to the sky which all form together in clouds and cause rain, so the thoughts and feelings, words and actions also have their mechanical work to do. That work directs the action of the universe. This shows to us that it is not only a mechanical work of nature, but human intelligence, mechanically working, which directs the whole working of nature. This gives us an idea that man's responsibility is greater than that of any other being in the world.