[Yeah, it's confusing as hell. Bear with him, Genesis.]

Gaia, as I understand it. But not any sort of Planet we know. Apparently there's a magician here by the name of Garland who has somehow disrupted time and space, resulting in bizarre changes to this planet.

For instance, the city of Midgar is here, but it lies in ruins, overrun by vines and jungle. It has familiarities from home but at the same time, alien creatures as well as individuals, too.