Exteriorization is the state of the thetan, the individual himself, being outside the body with or without full perception, but still able to control and handle the body.
Exteriorization is a personal matter for each individual. Many Scientologists have been known to go exterior, so it would not be at all surprising if one, too, goes exterior at some point during one’s auditing.
When a person goes exterior, they achieve a certainty that they are themselves, a spiritual being, and not their body.