Crazy by Supertramp explores themes of mental health, societal pressures, and the struggle for individuality. It reflects on the feeling of being overwhelmed by the expectations and demands of society, leading to a sense of losing one's sanity or feeling 'crazy.' Key moments in the song include the repetition of the word 'crazy', which underscores the pervasive nature of these thoughts and the character's sense of entrapment. The lyrics question the norms and challenges conformity, urging listeners to embrace their uniqueness despite external pressures.