We are only in the middle of our development, so we still have a great deal to discover. - John Algeo

In his second year, Harry learns, among other things, about the three marks of existence that the Buddha taught, namely (1) that life involves suffering, (2) that we have no enduring separate self, and (3) that everything is constantly changing or transforming. Indeed, transformation is the key theme of Harry Potter and the Chamber of Secrets.

Theosophy holds that all things, including the human mind, are evolving. We are in the midst of an unfinished world and are ourselves unfinished.

The ultimate quest in the Harry Potter books is that of self-discovery. In that respect, these books share a common theme with the great spiritual guidebooks of humanity. Enlightenment is the ability to answer correctly the question Who am I? ... The same question is the principal subject of all the Upanishads and, indeed, of spiritual treatises in all the great traditions. Harry is on a great quest to discover who he is -- in the simplest, most literal sense of learning about his parents -- but also in the deeper sense of discovering his own nature and his mission in life. That great quest is mirrored in a different quest theme in each book of the series.