The song highlights The Beast's sacrificial love for Belle. Menken explained to ABC Radio
"'Evermore' is this moment in the movie where the Beast has decided he's going to let Belle go to go back to her father. And he does that out of love, even though it means that the spell will not be broken."
"He's watching her go, [saying], I know what love is now, and it's wonderful, even though I'll never see her again."