>>44328558>Nice headcannonIt's not headcannon you stupid fuck.
It's literally talked about in the Lucario and the Mystery of Mew film.
Lucario communicate using Aura.
All living creatures have Auras.
Auras are stronger in Pokemon than Humans.
As a bond between Pokemon and their trainer strengthens, so does their Aura.
Auras don't have to be understood to function.