The quote from Robin McKinley's book "Sunshine" emphasizes the unsettling nature of our own thoughts and emotions. It suggests that the most frightening aspects of life often come from within ourselves, where fears, doubts, and insecurities reside. This internal struggle can lead to a sense of vulnerability, as we confront the complexities of our own psyche.

By highlighting the fear of the mind, McKinley invites readers to reflect on the darker corners of their consciousness. The exploration of one's own mind reveals hidden anxieties that can be more terrifying than external threats, emphasizing the importance of self-awareness and understanding in overcoming inner fears.