Vikings!
Getting a tattoo is a fantastic way to celebrate your interest and passions. The person who got this ink clearly has a fascination with Viking culture and the lore associated with it. The raven is a symbol often used in Norse lore as it’s the creature that Odin would use to keep him in the loop regarding his Earthly subjects.
It’s also pretty obvious what this guy did to get those scars in the first place. Again, depression is not a joke, and if you or anyone you know is suffering through it, make sure to get them the help they so desperately need.