It's a mystery. A man's at odds to know his mind cause his mind is aught he has to know it with. He can know his heart, but he don't want to. Rightly so. Best not to look in there.
In Cormac McCarthy's novel, "Blood Meridian," the complexity of human understanding and self-awareness is explored through a character's struggle to comprehend his own mind. The character reflects on the difficulty of knowing one's thoughts, as the mind is the very tool one uses for self-discovery, creating a paradox. This leads to a sense of confusion and conflict within oneself.
Moreover, the character acknowledges the emotional realm—the heart—as something he can understand...