Golems

Golems are fictional creature that feature prominently in Jewish folklore. Crafted entirely from mud or clay, they are given life through mystical practices. The person who creates a Golem often has control over it, and can command it to obey his or her wishes. Some tales have the word emet (אמת) inscribed upon the creature's forehead, which means "truth". By removing the aleph in "emet", the word changes to the Hebrew translation of "death", at which point, the Golem is deactivated.