From Ardrana

Elysium gets called the Restful Plane or the Land of the Thoughtless, depending on a sod's attitude. The Ciphers'll tell a berk it's the perfect place, having goodness without thought. Then again, the Guvners can barely stand it because there's no order or discipline on the plane at all. That's because the driving force of Elysium is goodness and goodness only. Order or anarchy - it doesn't matter, as long as it's for the good.

This place is a land of fertile richness and unsurpassed natural beauty. Near the banks of the River Oceanus, which winds through all the layers, are tall trees, waving reeds, and lush meadows. In the hundreds of miles beyond the river's banks, the forests give way to grassy plains, then rolling hills, until the land finally becomes rugged badlands that are wind-sculpted into forms of artistic beauty.

The petitioners here live their lives in peaceful repose, more or less living as they wish. There's no need to work unless a person wants to, for the land is abundant enough to fulfill all wants. Nonetheless, there are towns and cities here, organized by those who want to live this way. Either choice is fine by the petitioners of Elysium.

Clearly the petitioners are an independent lot. Such is their nature that they're completely immune to charm, hold, and summoning spells. No one can force the inhabitants of Elysium to do anything they don't want to do.

Along the Great Road, Elysium is between Bytopia and the Beastlands.

Note: Elysium originally appeared in the Planescape AD&D campaign setting from TSR. Its use here is for the purposes of providing context for the campaign only.