Well,” Craig thought a moment, “ascending into the B-ranks is not as easy as breaking into the D or C-ranks. Just absorbing Essence is not enough; you need to make a connection to a fundamental law of the universe. That is, you need to learn the true name of a concept to channel your Essence through and bind your aura and cultivation base to it. This binding has to be compatible with the Essences that you use so that you can exchange your varied Essences for Mana.”
