Level

As one of the working tools of a Fellowcraft and an Immovable Jewel of a lodge officer, the level carries both operative and moral symbolism 1. Operatively, the craftsman uses it to lay the horizontal courses of a wall so that the structure rests on a true foundation 1. Speculatively, Masons are taught that they build upon the "level of time"—a line of progression that moves in only one direction and cannot be recalled or unbuilt once passed, requiring every deed to be laid with precision and virtue 1.

Along with the square and plumb rule, the level's symbolic principle is used to foster moral rectitude and exactness of thought, word, and action, as an article on the Grand Lodge of India's website notes. It also denotes foundational equality within the fraternity, expressing the principle that all members meet "on the level" regardless of worldly station, background, or social status, as an article on the Grand Lodge of India's website and the United Grand Lodge of England's website both emphasize.