P300:1, 27:2.1 This is the group designated from time to time by the chief supernaphim, "the original pattern angel," to preside over the organization of all three orders of these angels -- primary, secondary, and tertiary. The supernaphim, as a body, are wholly self-governing and self-regulatory except for the functions of their mutual chief, the first angel of Paradise, who ever presides over all these spirit personalities.
P300:2, 27:2.2 The angels of assignment have much to do with glorified mortal residents of Paradise before they are admitted to the Corps of the Finality. Study and instruction are not the exclusive occupations of Paradise arrivals; service also plays its essential part in the prefinaliter educational experiences of Paradise. And I have observed that, when the ascendant mortals have periods of leisure, they evince a predilection to fraternize with the reserve corps of the superaphic chiefs of assignment.
P300:3, 27:2.3 When you mortal ascenders attain Paradise, your societal relationships involve a great deal more than contact with a host of exalted and divine beings and with a familiar multitude of glorified fellow mortals. You must also fraternize with upwards of three thousand different orders of Paradise Citizens, with the various groups of the Transcendentalers, and with numerous other types of Paradise inhabitants, permanent and transient, who have not been revealed on Urantia. After sustained contact with these mighty intellects of Paradise, it is very restful to visit with the angelic types of mind; they remind the mortals of time of the seraphim with whom they have had such long contact and such refreshing association.