The monument of the resting place of the Greatest Holy Leaf symbolically represents stages in the Administrative Order of the Faith

This love the Guardian had for the Greatest Holy Leaf, who had watched over him for thirty-five years as far more than a mother, continued to be demonstrated for the remainder of his life. When the news of her death [15 July 1932 at the age of 86] reached him in Switzerland his first act was to plan for her grave a suitable memorial which he hastened to Italy to order. No one could possibly call this exquisitely proportioned monument, built of shining white Carrara marble, anything but what it appears - a love temple, the embodiment of Shoghi Effendi's love, he had undoubtedly conceived its design from buildings of a similar style and, under his supervision, an artist now incorporated his concept in the monument he planned to erect on her resting-place. Shoghi Effendi used to compare the stages in the Administrative Order of the Faith to this monument, saying the platform of three steps was like the local Assemblies, the pillars like the National Assemblies, and the dome that crowned them and held them together like the Universal House of Justice, which could not be placed in position until the foundations and pillars were first firmly erected. After the Greatest Holy Leaf's monument had been completed in all its beauty he had a photograph of it sent to many different Assemblies, as well as to a special list of individuals to whom he wished to present so tender a memento. 

- Ruhiyyih Khanum  ('The Priceless Pearl')