Gravis' mind was going wild as he saw the "teacher".
What teacher?
This was definitely the higher Heaven!
He looked far too much like the middle Heaven, except for the two differences that he definitely looked like a he and not a "they", and that he had five eyes instead of seven.
However, the more Gravis thought about this, the less sure he became. Orthar had also looked like a Heaven, and he certainly was an octopus, not a Heaven. Additionally, if this were the higher Heaven, he would be breaking so many rules by being here.
First of all, he directly came into contact with the beings in this world and even taught them things personally. Second of all, he was directly communicating with them.
Would the highest Heaven allow something like this?