Thick Face is the shield. Thick faced people have the ability to put self-doubt aside. They refuse to accept the limitations that others impose on them, or the limitations we commonly impose on ourselves. Black Heart is a shield. It is the ability to take action without regard to how the consequences will affect others. A black heart is ruthless but not necessarily evil. Using as its source the ancient wisdom of the East, this is a description of the secret law of nature that governs successful behaviour in every aspect of life, and how to use it to fulfil our highest potential within and around us.