HERE COMES A THOUGHT: Steven healing Jasper’s corruption by entering her mind through his dreams, and the whole thing is a giant homage to the ending of Revolutionary Girl Utena.
Jasper is Anthy, and just as Anthy is trapped by swords of hatred, Jasper is trapped by the green spikes of corruption that plagues her mind.
But the Anthy trapped by those swords is not the “true” Anthy, and the Jasper plagued by corruption is not the “true” Jasper, merely the monster she’s resigned to be. The “true” Jasper is pure and uncorrupted, possibly still wearing her Pink Diamond uniform, and Steven finds her trapped somewhere deep within Jasper’s mind. Maybe she’s hiding in her own hole from the Beta Kindergarten, sealed shut by the metal spikes that she used to contain the other corrupted Gems. That’s how she sees herself now–as nothing more than a corrupted monster.
Steven struggles to free the Jasper trapped inside her hole, just like Utena struggled to free the “true” Anthy trapped inside her coffin…
But he just can’t do it on his own. Jasper has to want to be saved.
“Jasper, please! Please, take my hand!”
I can really imagine Steven with this exact face, because he desperately wants to save Jasper and make everything right. He doesn’t even care that she was his enemy, he doesn’t care if she hates him or if she will always him, all he cares about his helping someone in pain. So he reaches for her…
Does she reach back…?