In Elton John's song 'Go It Alone,' the themes primarily revolve around self-reliance and independence. The lyrics speak to the emotional journey of standing on one's own and the challenges and triumphs that come with it. Key poignant moments in the song include expressions of personal strength and determination, as well as the recognition of the importance of moving forward despite obstacles. The overall message encourages listeners to embrace their own path and trust in their abilities to succeed independently.