There was a difference between perceiving and being aware of.
The sensory organs generated an input of information that far exceeded what the brain could normally process. The mind could not be aware of everything it sensed, and was limited to things that it chose to focus on.
Things that were most attention-drawing.
This principle was the foundation of all magic, subtle misdirection that redirected awareness away from truly important phenomena allowed for miracles that defied the laws of reality.
The most basic application of this was making things appear and disappear.
Like an incoming fist that surged towards one's jaw.
BANG!
Anthea's jaw rocked as the blow destabilized his balance.
And yet, almost like gravity, his attention returned to the blood-red glow in Rui's eyes.
His awareness magnetically returned to Rui's eyes.
BOOOM!