It appeared like a white light, just as it did for Regina’s father, but then you could see Olympus in the background.
No, read the above TV Line article.
The Underworld is kind of a weigh station between two other worlds. Hades has a brother that’s up in Mount Olympus, and then there’s a place “downstairs” that’s even worse.
The Underworld is the in-between Limbo. You can go “downstairs” (the worse place) or you can go “upstairs” (the Better place) and that’s Olympus. Olympus is their heaven, no matter what culture you’re from.
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