What is the meaning of moral spiritual change in adolescence?

In James Fowler's book, Stages of Faith, he identifies different stages of faith development that we go through as we grow older, experience the world, gain our own identity, and eventually come up with our own faith. It is widely acclaimed by mainly religious scholars and thought to be an Excellent breakdown of the stages people go through on their way to finding out what they believe.

Stage 3 is what he identifies as the adolescent stage. This is following the 2 childhood stages that are largely characterized by conformity to whatever your parents have taught you. As you get into adolescence, you start developing your own identity. Although you may still conform to whatever you have been taught, questions start to arise within you about whatever your parents have, or have not, taught you. This would include any moral changes that would have to due with a lack of faith in what you have been taught, or gaining a faith that you were not taught to by your parents.