Answer:
Nelson Mandela is expressing a profound realization that his personal freedom was intertwined with the freedom of all people who shared his background and struggles. He came to understand that his individual liberty meant little if his fellow South Africans, particularly those who looked like him, were not also free. This realization led him to join the African National Congress and commit himself to the broader cause of securing dignity, self-respect, and freedom for his people. Mandela's message is that true freedom is not isolated but connected to the collective freedom and well-being of his community, and he was willing to sacrifice for this greater cause.