In Dungeons & Dragons, the fantasy role-playing game, Mount Celestia or more fully, the Seven Mounting Heavens of Celestia, or even the Seven Heavens is a lawful good-aligned plane of existence. It is one of a number of alignment-based Outer Planes that form part of the standard Dungeons & Dragons (D&D) cosmology, used in the Planescape, Greyhawk and some editions of the Forgotten Realms campaign settings.
The plane known as the Seven Heavens was mentioned for the first time by name in the article "Planes: The Concepts of Spatial, Temporal and Physical Relationships in D&D", in The Dragon #8, released July 1977. In the article Gary Gygax describes the plane as one of the "Typical higher planes". The plane was mentioned again in an appendix of the known planes of existence in the original (1st edition) AD&D Players Handbook, published in June 1978, where it was described as "The Seven Heavens of absolute lawful good".
Celestia is the ultimate in law and good. All aspects of Celestia are beautiful and perfect; it is where the souls of many creatures of lawful good alignment go to after death. It is home to numerous celestial creatures including various types of archons, the petitioners of this plane.
Persistently hesistant, anxious and quick to mark
To not know this could exist, an existence without
conflict
Now what has been created, what I have always wanted.
No approval needed as unsure as I’ve ever been
Certainty is guidance as pure as you could ever know
Defying all judgement I see you with me.
Chasing a longing, an aspiration for affection
Miraculously moving out of where others have come to fail
I never expected to land on my feet from where I fell.
A quick grasp on cascading matter, no approval needed
It’s hard to find expression, but right here is where I
want to be
Unexpected beauty intertwining with reality, I see you
with me.
For you to know I care, we don’t need to make them see.