The tree on the mountain is visible from afar, and its development influences the landscape of the entire region. It does not shoot up like a swamp plant; its growth proceeds gradually. Thus also the work of influencing people can be only gradual. No sudden influence or awakening is of lasting effect. Progress must be quite gradual, and in order to obtain such progress in public opinion and in the mores of the people, it is necessary for the personality to acquire influence and weight. This comes about through careful and constant work on one's own moral development.