Bardon emphasized two points about doing this sort of thing: first, that one must complete the necessary prerequisites of the training program or no success was possible; secondly, that the magician must call the spirit back under their "divine authority", not as a peer, otherwise they are liable to be manipulated by the entity.
Bardon fremhæves to punkter om at gøre denne slags ting: for det første, at man skal udfylde de nødvendige forudsætninger for uddannelsen, eller ikke nogen succes, der var muligt, for det andet, at du skal ringe til ånden tilbage under deres "guddommelige myndighed", ikke som en peer, da de ellers risikerer at blive manipuleret af den enhed.