They're loosely primarily based upon the journeyman method, which was utilized to teach Medieval Craftsmen. Symbolically, the levels characterize the 3 stages of human development: youth, manhood and age. Non-public Lodges form the backbone of Freemasonry, with the sole right to elect their very own candidates for initiation as Masons https://digitalasset.sfo2.digitaloceanspaces.com/westhillmasonry/Hardscape-Contractors.html