In the quote from Philip K. Dick's "A Scanner Darkly," the speaker expresses a desire to embrace madness, suggesting a longing for the freedom or escape that comes with it. The phrase indicates a struggle with conformity or the constraints of reality. By stating they "forget how," it implies that the knowledge or ability to let go has been lost over time, hinting at a sense of nostalgia or frustration.

This sentiment resonates within the context of the book, where the exploration of identity and mental state plays a crucial role. The characters grapple with their perceptions of reality, and the wish to go "crazy" reflects a deeper commentary on the nature of existence, choices, and the burdens of awareness in a fragmented world.