The quote reflects a sense of disconnection and incongruence. "My brain" symbolizes one's thoughts and perceptions. "This world" signifies the external reality. "Don't fit each other" implies a lack of alignment or compatibility. The quote conveys a feeling of being out of place or at odds with the world.
The quote underscores the notion of not belonging. It highlights the emotional struggle of feeling like an outsider or being unable to relate to the world around them. "Don't fit each other" reflects the perceived disparity between one's internal experience and the external environment.
In essence, the quote speaks to the challenges of navigating a world that feels discordant with one's inner thoughts and feelings. It emphasizes the importance of understanding and accepting individual differences and the need for empathy and support for those who may feel disconnected from their surroundings.