Religious conversion
Religious conversion means adapting a different religious world view. This may include becoming a member of a religious organization. It may also include adapting a different identity.
Secondary conversion means that somebody changes his or her religion to that of his or her spouse.
There are many theories of conversion. Sociologists tend to see conversion as a gradual process in which socialization is at least a factor. This view contrasts with the archetypal conversion story of Saul who became Paul, as described in the New Testament, the most important Christian scripture.
The New Testament states that Christians have the obligations to tell about their faith. Some denominations, like the Jehovah Witnesses proselytize.
The theory of brainwashing for recruitment into cults or new religious movements has been rejected by the majority of scholars.