Understanding Author's Purpose

In the excerpt from the novel below, the author delves into the internal conflict of the protagonist as they grapple with a moment of personal crisis. This moment is pivotal for understanding the character's motivations and the novel's broader themes of identity and moral choice.

"As the storm raged outside, mirror shattered reflections whispered doubts into Oliver's mind. Should he confront the truth about his past, even if it meant losing everything he had built? The memories clawed at him, each one a haunting reminder that comfort could be a prison, and that his choice might dictate the freedom he so craved—or the further imprisonment of his heart and soul."

In this context, what is the primary purpose of the author in this passage?