"That being said, the changes of a Concept do have an effect on Magecraft," my master murmured.
In the cup now left on the table, ripples were forming on the surface of the tea. It seemed like the ritual my master had performed was having an effect on it, even if a little late.
"Further, it may have simply all just been a part of someone's plan.
Rituals that use the name of the Lord to bind demons were in abundant supply in the past. Of course, being Magi, it's not like everyone is a pious follower of Christianity. We simply made use of the universalized concept of the Name of the Lord, under which all things must submit. In recent times, its similar to how an Internet Protocol works - well, I guess that explanation would just confuse you even more. With that line of reasoning, the use of Angels was an inevitable point on the road. Compared to using the Name of the Lord, it's a much easier Concept to make use of after all."
That I understood.
The Concept of God was one that had a distinct "colour" to it. You could also call it faith. In comparison to that, Angels came in many variations, like Guardian Angels and Fallen Angels. For this reason, the kinds of rituals that could be used exploiting Angels was far greater.
And that was why my master had called it a reinvention.
"Now, the development of new Magecraft in the West is almost entirely dominated by the influence of these Angels. No, it's not actually limited to new Magecraft. It may be subtle, but the Concept of Angels almost certainly has an effect on all Magecraft. For the modern Magus, whether the goal is to make use of Angels or eliminate them, in some form they are conscious of any changes that occur in regards to them."
My master closed his eyes. Then slowly, as if sighing,
"In a way, it's safe to say that the modern Magus is in the business of collecting Angels."