[Chief among the knowledge the Universe Arcana hasn't granted him is the answer to how birds can carry a plate with their wings, and Minato's eyes are fixated on Sakuya's wings as a result. He's being pretty obvious with it too, only making eye contact with Sakuya again once he's satisfied that...

It's just a thing that happens. Yeah.]

You don't have to accept all of it. That's only the first step, but only people with strong willpower can use a Persona...You can't do that without accepting yourself first.