The Celtic shield knot is an ancient symbol of protection. This knot entails a square design with four distinct corner loops Traditionally, the design was used to ward off evil spirits or enemies.

The Celtic shield knot consists of a circle with four quadrants and interwoven lines connecting each of the four distinct corners. Historically, it was used to fend off evil spirits or protect ...

and even committed sacrifices to keep evil spirits away. But they left their doors open so that kind spirits would join them. Around 43 A.D. the Romans conquered most of the Celtic territory ...