Mundus (Dimension)

The realm of Mundus, also known as the realm of the old, is the physical plane of reality in which our world exists. It is measurable as the entirety of the universe in which we reside. It was created by the primordial deity Agni as a containment device for time, and is governed by the same cosmological laws as those of Betas, which stem from their time as a connected realm.

It is one of multiple realities known to exist, others being Betas, The Otherwhere, and the newly created Erewhon.

Creation
In the beginning there was Agni, who being lonesome split in two and thus creating a sibling, Aditi. The two were content at first and held each other's hand in the darkness, but loving Agni soon felt the effects of time upon Aditi and wept for Their shared change. Agni decided to seal wicked time away, preventing Aditi from ageing and changing further. Aditi was angered by this, believing change to be a good thing, which caused the siblings to quarrel; as They fought Agni created Mundus, the realm of the old and in retaliation Aditi created Betas, the realm of the new.

As time drained into Mundus Agni & Aditi began to slow, unable to progress without the flow of time to change Them. Agni was content with this, and saw that it was good. Aditi saw that lack of change led to Their stagnation, and as time left Them, Aditi bestowed the gift of Change upon the new realms. This force came to be known as Potentia, and is the origin of all magical energy.

As time drained from Their Presence, Aditi's final act was to relinquish the hand of Agni, forever seperating the Two, and preventing their respective creations from interacting again. They endure Their shared fate still to this day, isolated and alone, permanently unaware, permanently unfeeling, it is as if to Them no time has passed at all.