I lack clarity regarding the meaning of the Kohar. It sounds like the guardian angel. This item is a recitation of the spirit's merits which i find meaningless since in fact all this is known automatically and the supplication shown is more an imitation of feudal fealty.
This type of presentation works well for a priesthood wanting to retain royal favor as it establishes behavior for all subjects.
Otherwise it also informs a Pharaoh of proper behavior of a man with real world power..