'God Passes By', the most brilliant and wondrous tale of a century that has ever been told, is truly a "Mother" of future histories, a book wherein every word counts, every sentence burgeons with thought, every thought leads the way to a field of its own. Packed with salient facts it has the range and precision of snow flake crystals, each design perfect in itself, each theme brilliant in outline, coordinated balanced self-contained a matrix for those who follow on and study, evaluate and elaborate the Message and Order of Bahá’u’lláh. It was one of the most concentrated and stupendous achievements of Shoghi Effendi’s life.
The method of Shoghi Effendi in writing God Passes By was to sit down for a year and read every book of the Bahá’i Writings in Persian and English, and every book written about the Faith by Bahá’is, whether in manuscript form or published, and everything written by non-Bahá’is that contained significant references to it.
I think in all this must have covered the equivalent of at least two hundred books. As he read he made notes and compiled and marshalled his facts. Anyone who has ever tackled a work of an historical nature knows how much research is involved how often one has to decide, in the light of relevant material between this date given in one place and that date given in another, how backbreaking the whole work is. How much more so then was such a work for the Guardian who had, at the same time, to prepare for the forthcoming Centenary of the Faith and make decisions regarding the design of the superstructure of the Báb’s Shrine.