Nothing is Lost, Nothing is Created, Everything is Transformed

Based on a comment I saw under a post on TikTok (https://vm.tiktok.com/ZNdwWsp9T/) that asked for a fix-it fic, so here it is!
I have only watched the show and therefore know nothing about the comics. You have been warned.
(It goes without saying that the universe and characters are not my own; I guess you know the drill.)

"Morpheus stopped himself from taking his sister's hand at the very last second. It was a sudden and significant shift in his realm that had stopped him. A great foe had been defeated. He immediately assumed that the fate of the mortal woman who had invaded his realm had been sealed, but his mind could not pinpoint who had managed to take her down."

In which Morpheus is saved by those closest to him moments before he gives up on his existence.