Death Equals Emotion

If an important character, often the Big Bad, is an Emotionless Girl or similar character, chances are that on their deathbed, they'll finally learn how to feel. Accordingly, their last words often reflect this.

A Death Trope and subtrope of Final Speech. Sometimes overlaps with I'm Cold... So Cold... or Alas, Poor Villain.

Anime and Manga

 * In Bleach, as the previously stoic  dies, he discovers the meaning of THE HEART.

Film

 * Occurs when  dies in Equilibrium.
 * In the film version of Battle Royale,  finally feels something when he is killed.
 * In Terminator 2, the T-800 says that he finally understands why humans cry.
 * In Pirates of the Caribbean,  says "I feel... cold."

Literature

 * In Robin Hobb's Liveship Traders, as a dying, his joining with the ship restores the empathy, memories, and emotions that he'd stored away, and he dies finally knowing love and peace.

Fan Fiction

 * In Brutal,, was relieved that he'd get to see   again once he dies.