節子との(せつことの)美しい思い出(おもいで)と、高原で共に(ともに)生きた事実(じじつ)が永遠の光(ひかり)をくれたから

Eventually, Setsuko falls into an eternal sleep. However, even in deep sorrow, 'I' never despaired. This was because the beautiful memories with her and the fact that they fought and lived together at the highland sanatorium bestowed an eternal light upon his heart. Depicting a form of love that continues to live beyond death, this work remains loved by many today for its beautiful and pure prose.