The quote "I am a creature of my pen. My pen is the best of me" from A.S. Byatt's book "Possession" reflects the profound connection between a writer and their writing instrument. It suggests that the act of writing is an essential part of the author's identity, and the pen symbolizes their creative expression and intellect.

This statement emphasizes the power of the written word and how it shapes the author's existence. Byatt highlights that through writing, the author reveals their deepest thoughts and emotions, making the pen an extension of themselves and a crucial tool for self-exploration and revelation.