Apart from Toreador and the Habanera from "Carmen", and La Donna e Mobile from "Rigoletto", I know nothing about opera.
So why does this man singing Nessun Dorma from "Turandot" bring a lump to my throat, every time?
Is it something about opera itself? Is it the repeated "Vincero!" at the end of the aria? Is it this man singing "Vincero!"?
I don't know. But may it move you as it did me.