"I never looked for it, gave it no name; yet I knew it always, when the gift of peace came. I stood quite still for the moment that it lasted...Then the light shifted slightly and the moment passed, leaving me...with the lasting echo of its presence.." Diana Gabaldon
Also have seen lots of them domesticated and tame and not dangerous at all in Baltic Sea. We used to catch them as children to admire their purplish-red patterns.
They looked quite similar !