Results of qualitative biographical research on Christian fundamentalist co
nverts and de converts, and on occultist adolescents are presented and docu
mented using case studies. Research focused on life themes and on biographi
cal processes and transformations. Contrastive comparison of the cases resu
lted in typologies of Christian fundamentalist biographies and of "ways of
dis-enchantment". These indicate that obligation to a tradition is no longe
r the model for religious socialization. Its competitors are biographical t
rajectories which can have the following characteristics: heresy is taken f
or granted, religious search is like an open life-style preference (accumul
ative heretic); ritual coping with life themes is predominant; and religiou
s search follows the motive of sensation seeking. A typology of religious s
tyles is applied as an interpretive framework for (a) explaining the format
ion of fundamentalist orientations and (b) understanding development and tr
ansformation in religious biographies. (C) 1999 The Association for Profess
ionals in Services for Adolescents.