Real Meaning of the Thorn Symbol

NORSE RUNE: Thurisaz

Sound: “th”
Stands for: Thorn (or Giant)
Color: White
Casting meaning: This rune represents the ability we have to resist unwanted conflicts in a passive manner. It is a rune of protection and can tell us of a possible change that would have otherwise come without warning. You can use the protection aspect of Thurisaz as a defense against adversaries.

Almost completely the opposite of its portrayal in the series, heh.