Hurry for 55 points and urim & thummim has been translated to mean what? in what ways were they used for interpretations?

The terms "Urim" and "Thrumming" have traditionally been understood as "light(s)" and "perfection(s)" or as "perfect light." The Urim and Thrumming were a means of revelation entrusted to the high priest. No description of them is given. This oracular means apparently consisted of a material object or objects since it was physically stored in the breast piece of the high priest