I love Radiant Dawn to death, probably my favorite game in the franchise tbh. But my first encounter with this theme was the Awakening dlc map: Rogues and Redeemers 3 On that map, you face off with 50 of the protagonists, antagonists and strongest characters from previous games, with your army being completely surrounded. Back then, I didn't know who Ike or Ashnard or Sephiran were. I just knew that they all helped make that map absolutely terrifying.
I'm not saying it's romantic that the very first time this song plays is when the victory condition is "Ike and Ranulf arrive together", but I AM saying...