Westerners initially thought that flame was a tangible element corresponding to water.
It wasn't until the development of modern science that they understood flame to be merely a phenomenon of combustion.
Similarly, Western sorcerers in the past also considered magic power to be a describable force.
It's like body hair, some people have more, others less, and some are born with the White Tiger Holy Body.
But in the "String Theory" written by the Grand Sorceress Mephistopheles Planck, the essence of magic power is described as the frequency of strings.
Just like a radio channel.
It's not that you have a radio and can listen to whatever program you want.
You must tune to the right channel to receive the programs broadcast on that channel.
Of course, this is a hypothesis, and given the limited cognitive power of the people of this era, it cannot be said to be very accurate.
In Li Mumu's view, this thing is like cosplay.