After returning, he shut himself in his room and began recalling everything he knew about souls. He suddenly realized that almost all his conjectures about souls came from his previous life.
As a paranormal enthusiast in his previous life, he had naturally collected information on the subject, though it was all speculation without any substantial evidence.
Even cases that had actually occurred might have been unusual natural phenomena. Judging by those evil spirits, however, souls seemed to be a kind of emotion.
This bore some resemblance to the magnetic field hypothesis: neither could be seen or touched. Yet there were major differences as well. The effects evil spirits had on people were far more direct and severe.
Suddenly, he thought of Archmage Modera's basic spellcasting theory. One passage read as follows:
"Why can magic be cast? Because magic runes exist. Then how do magic runes gather mana? Through resonance."
Her book did a good job of explaining a theory: mana resonance theory. Simply put, she believed spells could be cast because mana resonated with mana, each influencing the other and causing a spell to take shape.
According to this theory, could souls also influence one another to achieve a desired result? He thought it was quite possible. He hurried back to his room and selected the smallest crystal from a pile. Holding it against his chest, he began trying to influence it with his mental power, but achieved very little. He realized that mental power alone would probably struggle to induce resonance; he would need some auxiliary tools. He immediately thought of Magic Circles, tools many mages used to assist their spellcasting.
Different Magic Circles served different purposes and varied in complexity. Generally speaking, the more complex a Magic Circle was, the harder it was to draw. Of course, a