LOST Season Finale 'The End' (2)

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I really didn't want to accept this, but all the
evidence seems to favor it... the Mirror world is
purgatory. Not in a strict Catholic sense or anything
of course, but when Christian tells Jack, "You created
this place" he's referring to the whole Mirror world
going all the way back to LAX, and it's a place
outside of time where the deceased can work through
unresolved issues in their lives before 'moving on'.

There are no troubling issues with people living side
by side in the Island and Mirror worlds, sharing
memories. They are not side by side at all. Everyone
in the Mirror world who is 'real' has died in the
Island world, from Libby and Charlie through Hurley
who may have endured for thouands of years as the
guardian of the island before finally dying.

Charles Widmore's contraption fully activated
Desmond's power to travel in time and allowed him to
even penetrate the barrier of death. He was not
afraid of the Man in Black because he knew how the
whole story was going to play out.

Eloise' weird behavior makes perfect sense. Wracked
with guilt in her life over her abusive treatment and
eventual murder of her son Daniel, in the afterlife
she clings to him.

Jack has no son... David is just an illusory prop to
help him work through his father issues. Probably the
same is true for Helen, who doesn't put in an
appearance at all in the final episode, even when her
fiance is undergoing spinal surgery.

Differences like Hurley being lucky, Locke's father
being a vegetable from a plane crash, Nadia marrying
Sayid's brother, that would seem unrelated to the
detonation of Jughead in 1977, make sense if
everything in the Mirror world is set up to be like
therapy to prepare everyone to 'move on'.

I'm not happy about this at all, but it explains
almost everything.

What does this imply for Mirror-world Aaron and Ji
Yeon? Are they dead-and-reborn real-world Aaron and
Ji Yeon, or just comforting illusions like David?

I'm still baffled by Locke's approaching the church in
a wheelchair and Jack's memory loss and recovery when
he touches the coffin.