…‘The Dispensation of Baha'u'llah’, a letter which the Guardian himself described as a statement of “certain fundamental verities”, “certain truths which lie at the basis of our Faith”. It has been referred to as Shoghi Effendi's own confession of faith. It is the appointed Expounder's presentation of the stations of Baha'u'llah, the Bab and 'Abdu'l‑Baha, of the transition from 'the Heroic and Apostolic Age' of the Faith to its Formative Age through the 'indissoluble link' of the Will and Testament of 'Abdu'l‑Baha, a summation of the spirit and chief provisions of that historic document and a marvellous presentation of the unique and distinguishing features of this Supreme Revelation, which make it 'unlike the dispensations of the past'. He emphasizes the twin institutions of the Guardianship and the Universal House of Justice 'permanently and fundamentally united in their aims'. Without deep study of this basic document, no Baha'i can claim to be truly knowledgeable of his Faith.
(David Hofman, the late member of the Universal House of Justice, from an essay: ‘Shoghi Effendi, Expounder of the Word of God’; published in ‘Studying the Writings of Shoghi Effendi’, by George Ronald)