What is exteriorization?
Exteriorization in general is defined as the externalization of an abstract form (ie spirit, essence) into an outward form. Relating to Scientology, Exteriorization is attained when a person realizes his “Self” as an immortal spiritual being and that the “Self” is not his body.
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Exteriorization can also mean, the removal of an internal organ for a temporary amount of time. This technique has been used to repair physical damage to organs like the colon.