Significance
While analysis of the knots seem to point to eight basic types, there is no evidence to indicate that a knot had any specific philosophical or religious significance beyond perhaps the most obvious are: the work of humans and the intricacy of nature. Modern wiccans in some covens have taken up the creation of celtic knots, attributing to them ideas and magical properties that were not there originally.
While the ancient Celts felt no need to attribute meaning to their designs, there is nothing to prevent the modern viewer from assigning significance. …