…although ‘Abdu’l-Baha’s station is not that of a Manifestation of God, nevertheless supplications may be addressed to Him. It is essential, however, that every believer should realize that while doing so he is directing his thoughts towards the Master as an intermediary between him and the Manifestation, and not as the Source of Divine Revelation and Spiritual Guidance. Provided this distinction is clearly established there can be no harm or objection in addressing prayers to ‘Abdu’l-Baha.
- Shoghi Effendi (From a letter dated 1 December 1934 written on behalf of Shoghi Effendi to the NSA of the United States and Canada; Baha’i News, no. 89, January 1935)