Amongst the spiritually powerful of the Middle Ages, it was thought Paradiso held for all a Divine Will, and as a result, they developed heavenly logic. The concept of the "Cardinal Virtues" was born of this logic, and classifies Paradiso's Divine Will into four broad groups. These Cardinal Virtues occasionally become physical manifestations of the great intentions of Paradiso, and are known as the Laguna, inspiring awe in the masses. Personifying courage and fortitude, Fortitudo has been depicted as a terrifying being of sporting an enormous face and two dragon's heads. He is said to be capable of summoning magma flows at will.