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.
More information can be found on these sites:
http://www.scientology.org/en_US/feature/glossary/index.html
http://www.religioustolerance.org/scientol1.htm
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.

