In "Young Goodman Brown", what are the stages of Brown's gradual disillusionment? And why doesn't Brown turn back, as he resolves to do?

Brown enters
the forest on a journey of personal discovery, an introduction into the world of the
less.than.perfect.  He moves from people he knows in the village to members of his family right
on to F/faith at the climactic scene at the "black mass" in the forest.  The closer
the person is to him, the more his disillusionment grows.  Lost of his F/faith is
the...