The protagonist reflects on the peculiar nature of the brain's operation, noting how it can work independently without revealing its intentions or motivations. This observation leads him to consider the brain as merely another organ, functioning much like the spleen or heart, carrying out its duties without conscious awareness of its own purposes.
This insight raises questions about the relationship between consciousness and the brain's activities. It suggests a separation between the mind's awareness and the brain's functions, prompting a deeper exploration into how autonomously the brain can operate within the body, much like other organs that perform vital roles without direct oversight.