It's all about time.

Recently deceased, a white-sheeted ghost returns to his suburban home to console his bereft wife, only to find that in his spectral state he has become unstuck in time, forced to watch passively as the life he knew and the woman he loves slowly slip away.
In A Ghost Story, consciousness is carried by the dead — a plane of “spectral house”. The story fights on E8 of the E0–E14 reality ladder, compressing grief, memory, time, mortality, love.
Films fighting at the same level of reality, about the same things.
Other films that change a standing rule of their world — ranked first by those bending it at the same rung.
What Dreams May Come (1998)alters at E8 · same rung · loose
Heart and Souls (1993)alters at E8 · same rung · loose
I Still See You (2018)alters at E8 · same rung · loose
Inception (2010)alters at E8 · same rung · loose
Eternal Sunshine of the Spotless Mind (2004)alters at E8 · same rung · rigorous
Your Name. (2016)alters at E8 · same rung · looseOther films that move a human interior onto the same kind of thing.
Corpse Bride (2005)consciousness in the dead · spirit underworld
All of Us Strangers (2023)consciousness in the dead · ghostly memory
Just Like Heaven (2005)consciousness in the dead · afterlife apartment
Ghosts of Girlfriends Past (2009)consciousness in the dead · spectral romance counseling
Always (1989)consciousness in the dead · spirit realm
Over Her Dead Body (2008)consciousness in the dead · afterlife purgatoryThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
Collateral Beauty (2016)consciousness in abstractions · grief, love
The Art of Racing in the Rain (2019)consciousness in animals · grief, love
Robot Dreams (2023)consciousness in animals · grief, love
Hello World (2019)consciousness in machines · love, memory
Destino (2003)consciousness in objects · love, mortality
The Twilight Saga: Breaking Dawn - Part 1 (2011)consciousness in monsters · love, mortality