road to Damascus experience
n.— «There are those who regard coming out as a “road to Damascus” experience, a single moment of recognition of one’s “true” self, a gestalt shift in which the label of the derided other is applied to one’s self.» —“The Role of Disclosure in Coming Out Among Gay Men” by Peter Davies Modern Homosexualities Nov. 1, 1993. (source: Double-Tongued Dictionary)