If its before the Fall, trying to know someone true personality is hard. But after the Fall, after reaching such level, you could feel a certain feeling on some people.
When one in the same level, it is hard to know one temperament and personality as one would be enshrouded with one ability.
For example, Hikigaya and Jean would find it hard to predict Azief movement and his action, as their premonition and their feeling toward him could never be trusted fully because of the fact that Azief himself is stronger than them both.
But if Azief was weaker than them, their premonition, their perception of him could easily be created by trusting their instinct.
Instinct for beings like them is very important. It is not some illogical feeling that is borne out of one's heart.
Instinct for high level beings like them is a hint from the forces of the world.
