Tessellations

The Universal Tessellation
The Tessellation is the common name for the shape of the universe (and all parallel universes). All realities share this fundamental shape, making it an excellent conduit for celestial spell-casting.

Because of their relationship to the structure of the universe, all tessellated patters have some amount of mystical power.

Using the universal tessellation in a spell is commonly referred to as "Invoking the Universal" or "invoking the 'uni."

Tessellation as a Magic Source
Most Ritual spells involve some form of tessellation/ pattern. Tessellations are frequently used as a conduit for capturing and harnessing the chakra of spacetime and repurposing/ reshaping it for use in spells.

Not all spells are tessellate in nature, but many of the most accessible forms of magic to humans have their basis in this tessellated source of magic.

The more densely replicable the tessellation is, the more power it can accumulate. Simple (mono-fit) tessellations are weak but easy ways to access a small amount of magic energy. Increasingly complex tessellations can carry more and more power.

Dense tessellations can be time consuming to create and cumbersome to wield for most spell-casters. The amount of power that can be converted in a tessellation is limited only by its size/ degree of detail.