what does the triple tau mean in the royal arch and where did it come from

The Triple Tau consists of three tau crosses conjoined at their feet to form the emblem and badge of Royal Arch Masonry 1. Historically, the single tau cross appears across ancient traditions—such as the Egyptian *crux ansata*, the Druidical symbol of deity, and the mark mentioned in the Book of Ezekiel—where it served as a sign of life, preservation, and divine protection 1. Adopted into the Masonic system under this tradition of preservation, its triple combination represents salvation from spiritual death and a mark of favorable distinction 1.

In English Royal Arch lectures, the Triple Tau is referred to as the Grand Emblem or Emblem of all Emblems 1. Geometrically, its intersecting lines form a series of right angles at the exterior boundaries and central union 1. Early lectures calculated these angles through five regular combinations, equating their total in right angles to the five Platonic solids representing the four physical elements and the sphere of the universe 1.

Albert Mackey interprets the symbol in its capitular context as a sacred mark, designating and separating those who know and worship the true name of God from those who remain ignorant of that mystery 1. As an official badge, the symbol is worn on the Companion's jewel and placed upon the flap of the Royal Arch apron enclosed within a triangle and a circle 1.