 Often these rituals invoked the power of an appropriate deity to perform the desired action, using the power of heka to compel it to act.Sometimes this entailed casting the practitioner or subject of a ritual in the role of a character in mythology, thus inducing the god to act toward that person as it had in the myth.Rituals also employed sympathetic magic, using objects believed to have a magically significant resemblance to the subject of the rite.