For the Ethereal purposes, this is not a pocket-dimension. The rules of the Ethereal apply here.

Those that dwell the sands of the Ethereal have seen it and fear it. A corpse as large as a beast of old stories. A massive humanoid. Something the eldest of Beings know as a Child; a creator of the Gods. This place is filled to the brim with power and the ability to bend anything at will. People that travel the Ethereal and know of the place of the Grounds worship this place as a field that grants all wishes for a meaningful sacrifice.

The Ethereal
Higher Plains The Market * Arcana Academia * The Siren's Nest * Hell
Lower Plains The Scar * Mausoleum * Envyara * Mournhold * The Asylum * Hæl
The Grounds The Old Battlefield * Frozen Time * A Dead Child * Fetid Ashes
The Thrones White Cathedral * Nyx * The Just Heaven