User blog comment:VedranTheII/Pretentious Diaries 2: What tricks would you teach your Aura?/@comment-24994749-20150718160146/@comment-24994749-20150719141254

When Pyrrha is explaining Aura to Jaune she asks something along the lines if he has ever felt like he was being watched.

That originally made me think that you could sense someone's else Aura. But the scene while Pyrrha explains that is of Ren perceiving the King Taijitu as it stalks him...

So I don't know if to interpret it as Aura having general extra sensory abilities or maybe Rwn detected the King Taijitu by noticing a void in the aura of the vegetation surrounding him?