Symbols of the Trinity
Three circles interlacing or in the form of a trefoil are employed as emblems of the Trinity, as is also the equilateral triangle.
The circle is also the symbol of Eternity, as having neither beginning nor end; in Scandinavian art it is represented as a serpent.
The orb as a symbol of power may possibly have its origin in the stone or weight, which in ancient times was kept by the tribal chief. To lift this was the test of the youth aspiring to manhood, a custom which is preserved in the Highland games when “putting the stone” is one of the tests of strength.