I'll state that in this universe, there's this concept of the three, core metaphysical forms:
The Body - The Mind - The Soul
I will go through every three and do my absolute best to explain them as concisely as possible while trying to make as much sense as I can.
Literally 80% of the magical concepts you'll deal with will be tied to them. The subject matter itself isn't too hard to remember once you figure it out.
Let's start with The Body. What is a body in the metaphysical term? It can be a lot of stuff. The term isn't strict. A body could be anything from an actual human body, to a rose flower, to something as inanimate and unliving as a rock. Pretty straightforward. That's not all, however. Assume there is a Ghost. A Ghost, by using some kind of power, could materialize a shining, translucent outline of their being. That kind of outline, in the terms of the universe, counts as a body, but it might not behave like one. A sword may still not cut through it, depending on what physics the ghost applies to itself. It might not obey gravity or the laws of cohesion. It is because Ghosts do not have a set body, so if they have the energy to do so, they can shape their body as they wish.
Moving on, is The Mind. What is a mind? Like with the Body, it is much more than you would expect it to be with the name alone. A mind is neurons firing, but it may as well be maintained by The Soul. For an instance, a typical human is born with the set of all three: The Body - The Mind - The Soul. He starts life with his body connected to his mind exclusively - the brain is where his mind resides. Once his body dies, the mind, in order to preserve itself, joins with the soul and becomes what is known as a Ghost. That leaves a mind and a soul with the ability to shape new bodies. This neatly ties into what I said in the paragraph above. Spirits are similar to Ghosts, but they were originally created without a biological body of any kind. They can be Elementals, Conceptual Spirits, Angels, Demons, or anything else.
Now, what is The Soul? In a way, it is similar to a computer but esoteric. If mana can be described as data, then the Soul is a system of complex, intricately woven pathways of this data, built out of more data, in a very complicated way that is hard to truly understand, comprehend, or replicate. The Soul is, weirdly enough, and quite unbelievably - the most active of all three metaphysical forms. It is what creates additional mana. From whence? No one knows. Many theories arise from where souls produce a resource that is seemingly limitless from nothing. Is it the Primordial Elder God? Is it a spark of divinity? Is it the Flying Spaghetti Monster? You can never be sure. However, souls are inherently limited from their beginning. They can be improved in a plethora of ways - absorbing other souls, meditating, or other forms of magic. What's important is that to make up for this weakness, they absorb magical energy from their close environment, like the airborne mana, which is constantly spewed out by the leylines.
Magic works by calling mana from The Soul, through The Mind, and sometimes channeling it through The Body. For an example, speaking an incantation the spell-user is acclimated with will prompt his mind to send a command to The Soul. This command will cause the soul to pour mana into the world and shape it accordingly to the Mind's command.
What are Leylines? They are cracks in the planet's soul. Created by the Gods to supply their creations on the planet with enough energy to thrive in magic for thousands of years to come. Places, where leylines cross, are called nodes. Generally, the one last point to mention about leylines is Maelstroms. They are events of where numerous leylines close or open at the same time in a said area. This can be caused by, or can be the cause of great spiritual change, like the opening or closing of new realms, creation of new elemental creatures, or birth of new Gods. An event in which a Maelstrom consumes the whole planet of Terra at once is called a Planetary Maelstrom, Great Maelstrom, or other such affectionate nicknames.
Lastly, comes cosmology. As the observant may have noticed, the calendar at the end of each post never ends with 31 as the last day of a month. This is because Terra, as well as the universe, was created over thousands of years according to a very precise template and plan of the gods. As such, they decided to make a fairly even and symmetrical cosmology. The end result is that there are 360 days in a year, with 12 months, each month 30 days long, and 2 special days per month (15th and 30th) when spiritual activity rises slightly, often being the cause of festivals and celebrations.
but yeah its more fun to guess than outright knowing.
