A lamen (Latin, meaning "plate") is a magical parchment or pendant, sometimes acting as a protective 'magical breastplate' worn around the neck so that it hangs upon the breast over the heart.
"[4] Crowley and DuQuette have proposed that the magical lamen might be a modern adaptation of the priestly breastplate of the ancient Hebrews.
[5][6] The magician may wear a lamen as a representation of his personal relation to his godhead or the universal forces of balance and enlightenment.
[1] Within group ceremony, lamens are frequently worn as symbols of particular offices or roles within the ritual work.
[2][7] Many magical orders also use a particular lamen design to show membership and align energies of individual members with the group dynamic.