“Growing old and dying is the beauty of the fleeting creature called a human being. Because they grow old, because they die. They are tremendous. Lovable. And precious. what they call ‘strength’ isn’t a word that is used in regards to the body.” - Kyojuro Rengoku
While the growing old part isnt necesarry fittable in this series, I think this quote perfectly describes moments like this. If not for their sacrifice, they wouldnt be so lovable, the time we spent with them wouldnt be so precious.