An initiation story may be said to show its young protagonist experiencing a significant change of knowledge about the world or himself, or a change of character, or of both, and this change must point or lead him toward an adult world. It may or may not contain some form of ritual, but it should give some evidence that the change is at least likely to have permanent effects.
Initiation stories obviously center on a variety of experiences and initiations vary in effect. It will be useful, therefore to divide initiations into types according to their power and effect. First, some initiations lead only to the threshold of maturity and understanding but do not definitely cross it. Such stories emphasize the shocking effect of experiences, and their protagonists tend to be distinctly young. Second, some initiations take their protagonists across a threshold of maturity and understanding but leave them enmeshed in a struggle for certainty. These initiations sometimes involve self-discovery. Third, the most decisive initiations carry their protagonists firmly into maturity and understanding, or at least show them decisively embarked toward maturity. These initiations usually center on self-discovery. For convenience, I will call these types tentative, uncompleted, and decisive initiations.