Mount Celestia

The Seven Heavens of Mount Celestia, also called the Seven Mountains of Goodness and Law, Seven Mounting Heavens of Celestia or Seven Heavens, was the pinnacle of lawful goodness in the Great Wheel cosmology. The Seven Heavens were dedicated to goodness shaped by law and justice tempered with mercy.

Description

Celestia was the ultimate in law and good. All aspects of Celestia were beautiful and perfect; it was where the souls of many creatures of lawful good alignment went to after death. Celestia was home to numerous celestial creatures including various types of archons, the petitioners of this plane.
As an outer plane, Celestia was spatially infinite and consisted of seven infinite layers (or sub-planes). The seven individual layers formed a colossal mountain that rose from an infinite sea of holy water on the bottommost layer, to the summit on the topmost layer. Ascending the mountain was analogous to traveling through subsequently higher or 'deeper' layers to the top. Each of the seven layers contained at least one mountain or high structure rising into the sky, and most had whole mountain ranges. The barriers between the seven layers were arranged such that entrances were at the lowest geographical points and exits were at the highest, so a traveler from the Astral Plane would enter the first layer at the base of a mountain (actually, in the surf of the ocean surrounding the mountain) and had to climb to the peak to reach the next layer, only to emerge at the nadir again. The sky of each layer had its own hue which softly bathed everything in gentle shades of luminance.
In a ring around this great mountain were three smaller mountains, lesser peaks of Celestia. These were Martyrdom, Trueheart, and the Court and were the domains of the gods Ilmater, Torm, and Tyr, respectively.

Inhabitants

The archons were the native and most numerous inhabitants of the Seven Heavens, cheerfully going about the business of serving the Higher Powers. Many types of archons lived in the first six layers but only rumors existed of a ruling archon ensconced in Chronias. Other creatures found on this plane were solars, planetars, hollyphants, devas, foo creatures, and agathia. Human and non-human pilgrims, shedu, lammasu, ki-rin, and dragon horses would visit fairly often. Collectively, the inhabitants of Celestia were called "Celestians" Realms
A number of deities had their divine realms on or around Mount Celestia, and it was itself a divine realm:
Amaterasu, sun goddess of the Eight Million Gods, had the realm of Radiant Light in Mercuria.
Arvoreen, the patron deity of halfling warriors, made his home in the realm Green Fields in Venya with the others of his pantheon. Bahamut was reported to have realms in Lunia, Mercuria, Venya, and Solania as well as the Elemental Plane of Air. Whether these were separate realms or one realm that moved about, or possibly spanned several layers at once is still a matter of speculation.
Berronar Truesilver, Mother of Safety, Truth, and Home, lived with her husband Moradin in a mountain home in Solania.
Cyrrollalee, the halfling deity of friendship and trust, once lived in Green Fields in Venya with the others of her pantheon.
Girru, Untheric god of fire, kept his realm, the Undying Flame, in Mercuria
Helm, God of Guardians, had the tower of Everwatch, which moved around the four mountains of Celestia.
Ilmater, the Crying God, had the realm of Martyrdom atop the summit of a lesser peak outside of Mount Celestia.
Jazirian, the wise deity of the couatl, has her/his realm Uroboros hover in the clouds of Solania.
Moradin, the Soul Forger, chief deity of the dwarves, once made his home in Solania within the steep mountains which were called Erackinor in the dwarven tongue. It was here that Moradin kept the Soul Forge which he used to temper the spirits and weapons of his people. It was said the smoke from his forge became the mists filling the valleys and the heat from it warmed all of Solania.
Siamorphe, the Divine Right, had her Alabaster Palace in a lush valley between Celestia and the Court.
Torm the True maintained his realm of Trueheart on the layer of Mercuria or on the lesser peak of Celestia. He later reigned from the High Seat from the city of the True Court near the summit of Celestial itself.
Trishina maintained no permanent realm, but often wandered Mount Celestia.[
Tyr Grimjaws, the Even-Handed, once had a realm called the Court on the layer of Lunia or on the lesser peak of Celestia.
Yondalla, the Protector and Providor of the halflings, lead her fellow powers from within the Green Fields in Venya.

History

When the multiverse was first created, before any mortals had yet died, Mount Celestia had no archons. The first seven martyrs of law and goodness whose souls arrived from the Material Plane were transformed into the plane's first archons and mandated with the role of ruling its seven layers for eternity. The seven martyrs and their successors continued to rule Celestia as the Celestial Hebdomad.

Type

Dimensional plane