This fourth volume covers the most important period of the patronage of Bahá'u'lláh. It is the period which this divine inspiration reached its peak and witnessed this ascendancy to the throne of Sovereignty when He settled in the palace of Bahji. This period also keeps up with the principal events and incidents that occured within the reset of His guardianship and the most prominent tablets revealed until His ascencion. These many tablets revolve around the promotion of principles and teachings that shape up with the directives of the Kitáb-i-Aqdas, the framework of Bahá'u'lláhs World Order.