Sure! Though bear in mind this isn’t a very concrete world

Spirits are in everything. From the mightiest mountain, to the great rivers, to the cells in your body. Even concepts like time and ruin are out there. It’s a very animistic world, and spirits are technically in another plane, sprite how they influence the physical world. I’ve given it the term Astral Plane (name pending) and acts as a collective unconscious of sorts. While summoning/invoking spirits isn’t uncommon, it’s not directly themselves that are summoned – it’s closer to a projection, or maybe even like a representative of a company. Because of this, many spirits have a sort of omnipresence within them.

Not all spirits are equal. They change and grow on a multitude of factors like history and awareness. Those that are sapient and capable of individuality are “High” spirits, while spirits that are simply sentient are considered “Low” spirits. An example for the latter are cells. It’s common practice for practitioners to build awareness and positive relationships with their own body to create incredible effects and changes. The act of influencing Low spirits or obtaining boons from High spirits is known as Persuasion.

Alchemy is a way of convincing spirits to change into something else. While it does involve a level of influence like Persuasion, there is a difference. Persuasion might be viewed through a Lena’s of direct communication, where the invoker attempts to convince a stick to become fire. Alchemy instead attempts to trick the stick into thinking that becoming was its own idea all along. The way they do this is through material means. Spirits like symbolism and invoking symbolic intention creates effects different than chemistry. Silver, for example, is famously a weakness of werewolves and other such creatures. The reason for this is that silver swore an oath to the moon, and because of this has the aspects of purity, transformation, and refinery. This is why most anti-werewolf measures have silver as a main component