Norse Gods bear famous wounds: an eye traded for wisdom, an ear given to hear the approach of danger, a hand to bind and slow the dire wolf of ultimate destruction. Each sacrifice is an emblem of their power: mighty Odin, who sees all in his high seat, is half-blinded; Heimdall the guardian of Asgard, the Gods’ realm, left half-deaf; Tyr the God of justice unable, forevermore, to swear by his severed right hand in court.
While humans certainly benefit, the scars that Heathen Gods and Goddesses bear are not necessarily made for humans, but for the Gods to become more themselves. They excel or prove themselves worthy of their Godhood in the act of sacrifice, inexorably transforming in the act of giving of themselves. They are what they are because they’ve toiled and suffered and earned it, becoming more holy in the process.