A person can be aware that they are gripped by a belief that others do not endorse and may even actively attempt to disprove, but the belief feels so overwhelmingly true that they cannot shake it, despite evidence to the contrary. A person who has experienced past delusions and no longer does (for example, due to the use of antipsychotic medication), may realize that their former belief was false, and thereby have insight into the fact that they are prone to delusions. This knowledge may help them manage future breaks with reality.