Board Thread:Lore Discussion/@comment-107.1.228.86-20130703034053/@comment-9212235-20150425081304

Magicka, also known as Creatia, originates from Aetherius. It is used to create. Mundus (and as such, Nirn) is filled with its own magicka and radiates it to some degree. The vast majority of magicka comes from Aetherius. When Magnus and the Magna Ge left creation, they tore holes through Oblivion and into Aetherius. This allowed for large quantities of magicka to flow out through the holes and into Oblivion and especially Mundus. Magicka isn't just the source of magical power, it's the source of life. All beings require it to live. It coursed through blood (side note, this is why vampires drink blood). It seeps into plants, animals eat plants, and mortals eat plants and animals. Just as nutrients are transfered through this process on Earth, so too is magicka. Creatures (except vampires) are also able to absorb magicka through their skin to some degree. Sometimes the amounts of magicka that exists within Nirn is enough ot recharge a mage. Sometimes they're so spent that they require direct sunlight.