Magic

The magic of Venaya all uses the same underlying system of manipulating Dominion essence. Dominions are planes of existence comprised of different types of essence, or as it's called on Kaldwyn, mana. The world the story takes place on the "core plane" and can be considered a planet on a plane of existence set between all dominions. Venaya and all other core planes are made up of the essence of the dominions they are set between.

There are sixty standard dominions in total, and each dominion has lowercase s stars that act as a gateways or portals to a single dominion. These stars exist both on the core plane and in dominions. Each dominion is classified as either a prime dominion or deep dominion depending on how they connect to other dominions through these stars. Stars, in reality, are confluxs in space that open between these dominions. Deeps are formed in the conflux of space between two primes dominions. There is a lot of nuance to this, but for a basic overview that's probably as much as you want.

Magic is categorized as calling and shaping, and are ways in which the essence/mana of these dominions are manipulated. Calling involves taking a bit of your own essence and sending it to original dominion plane to call forth more essence in the form of a spell. You can use "keys" and other techniques to modify the spell you are calling, and that's how more complex callings are done. Shaping involves using a bit of your own essence to connect to the essence in the world around you and manipulate it as you wish. It also gives you the ability to sense that essence when it's nearby. Both of these types of magic draw on the specific essence types you want to call or shape from your body.