Symbols allow people to communicate quickly, and to transcend language barriers. When you see a green light or a circle with a line through it, you know what it means. Likewise, Masons use metaphors from geometry and the architecture of stonemasonry to inform their continuing pursuit of knowledge, ethics, and leadership skills.
To reﬂect their heritage, Masons wear aprons while in Lodge, at certain public events, and at funerals to demonstrate their pride in the fraternity, and their lineage from stonemasons, who historically carried their tools in leather aprons. The square and compass is the most widely known symbol of Masonry: When you see the symbol on a building, you know that Masons meet there.