Judge was with his mother, she recently started to teach him about spirits. But there was one condition for her to start teaching him, and it was that he could not attempt any spirit summoning until she told him he was ready.
No, it was not one of those things where your master says in a cryptic tone that he was not yet ready, but she had a clear reason for that.
Spirit summoning, or in his mother's words "Evocatio Entitatis Sigillatae", which even she did not know the meaning of, was an art of summoning entities sealed in the world beyond ours by allowing them to use our own body as a gateway through the seal.
She said even the gods could descend if they found a suitable mortal body that could hold their immense power at the moment they made their descent.
