You ask why the Manifestation of God for this day, in other words, Bahá'u'lláh, has not given all the detailed answers to the theories advanced by occultists, spiritualists and many of the more abstruse philosophers of the present day.
It would be absolutely impossible for anyone to answer all the questions that might be asked by the curious, whether scholars or ordinary people, on any subject. If the Prophet of God only came to this world in order to answer people's questions, and elucidate all the "nonsense", for the most part, that people have gotten together and formed into cults and philosophies, They would have no time to instruct man by Their example and through Their Teachings in a new way of life.
We must turn aside from these vain imaginings and suppositions and philosophizings of the world, and fix our eyes upon the clear stream of the Teachings of Bahá'u'lláh. Out of these Teachings, and the society which they will create on this planet, will come a solution to all of the problems of men. Gradually, greater scholars, more deeply spiritual thinkers, will be able to answer from a Bahá'í standpoint many of these questions. It is not necessary that they should be in the divine text; they can be studied and learned in the future; but at present we have not had time to evolve the Bahá'í scholars who can deal with these subjects in detail, and take upon themselves to answer the abstruse points and the many unfounded doctrines which are advanced by modern philosophers.
- Shoghi Effendi (From a message dated 22 April 1954 written on behalf of Shoghi Effendi to an individual believer; included in a message by the Universal House of Justice dated 5 August 1969)