The gaze of a Pluto held the vicissitudes of the world. If gazing upon a Void Beast could send one into the pits of despair, then meeting the eyes of a Pluto was akin to being forced to question one's very existence. It was beyond despair, it was a feeling of being inconsequential, of feeling meaningless. It forced you to live out your life in the blink of an eye, only solidifying how worthless your accomplishments would be.
Most would look away immediately on instinct, but it would have already long been over. It only took an instant, an instant to realize just how insignificant you were.