Maturation, growth in wisdom or awakening involves repeatedly letting go of, transcending limiting worldviews, self-concepts, etc, for progressively more accurate, more expansive, more inclusive understandings of the nature of reality.
"having faith is not a question of clinging to a particular set of beliefs, a particular set of Buddhist practices or psychotherapeutic techniques. Having faith involves the opposite: it requires we let go of what we are clinging to."
Rosenbaum R. Zen and the heart of psychotherapy. Brunner/Mazel, Philadelphia, 1998. http://www.zenqigong.com/Psych/