Longer Boats by Cat Stevens is a song that delves into themes of change, conflict, and the questioning of progress. The 'longer boats' metaphorically represent the arrival of new influences or invaders, challenging the status quo and sparking upheaval. Key themes include the inevitability of change, the clash between different cultures or ideologies, and the quest for understanding amidst chaos. Poignant moments in the song occur when the lyrics reflect on the human condition and the continual search for meaning in a rapidly changing world.