Shoghi Effendi Afnan - Baha'i Faith

O ye the faithful loved ones of Abdu'l-Baha! It is incumbent upon you to take the greatest care of Shoghi Effendi, the twig that hath branched from and the fruit given forth by the two hallowed and Divine Lote-Trees, that no dust of despondency and sorrow may stain his radiant nature, that day by day he may wax greater in happiness, in joy and spirituality, and may grow to become even as a fruitful tree. For he is, after Abdu'l-Baha, the Guardian of the Cause of God, the Afnan, the Hands (pillars) of the Cause and the beloved of the Lord must obey him and turn unto him. He that obeyeth him not, hath not obeyed God; he that turneth away from him, hath turned away from God and he that denieth him, hath denied the True One.
(`Abdu'l-Baha: Will and Testament, page 25)