In Celtic mythology, Arianrhod, goddess of the Silver Wheel, carries the souls of the deceased to Emania. Arianrhod is associated with and can transform into an Owl, and through the eyes of the Owl, can see the truth in the human soul.
Good to know. Intuitively I do this. I never knew it was actually a mudra. "... Dhyani Mudra: In this mudra, the back of the right hand rests on the palm of the other in such a way that the tips of the thumbs lightly touch one another. The hands rest in the lap. The right hand, resting on top, symbolizes the state of enlightenment; the other hand, resting below, the world of appearance."