Enable the rehabilitation and release of the Nether-native Ghasts.

Ghasts are not native to the Nether.
Recent discoveries suggest they once lived peacefully among the clouds. The Nether made them hostile and full of suffering.

I propose that a Nether ghast, if exposed to the Overworld for a long enough time, should gradually become peaceful again. Like piglins that zombify in the Overworld, ghasts would go through a state change. Their aggression would fade slowly — but this healing could come at a cost: some ghasts might die from emotional shock, much like real people freed from long, traumatic captivity.

Condition and Effect

Remains in the Overworld: Begins to calm down.
Stops attacking after ½ cycle: It floats silently, no longer firing. It seems curious, even confused.
Witnesses a full day/night cycle: It begins to “softly cry,” and its gaze becomes gentler.
Exposed to rain: Final phase: It looks to the sky, lets out a soft, final wail, then...

A ghast that has found peace would gently ascend into the sky, leaving behind a special tear, a unique music disc (different from “Tears”), or a relic from the sky — as a token of thanks. Some might return to the world later, to give birth.

Note: This is not taming. It’s not ownership. It’s a release — a gesture of repair toward a trampled sky-being.

This mechanic would give ghasts a new meaning: not just hostile mobs, but a tragic species to save. It would add layers of storytelling, emotion, and interaction to Minecraft — all without altering their behavior for players who prefer classic gameplay.