Label TextHeart scarabs were placed over the mummy's heart. The underside was usually inscribed with a spell from the Book of the Dead invoking the heart not to betray the deceased at the final judgment. Protective wedjat eyes and heron-like benu birds, associated with rebirth, decorate the scarab's upper surface.
Scarabs, among the most popular amulets, took their form from the scarab beetle. For the ancient Egyptians, a dung ball pushed by a beetle called to mind the sun's movement across the sky. Scarab beetles laid their eggs in dung balls, and the emergence of young beetles from the sun-like ball led the Egyptians to associate scarabs with the sun god and rebirth.
(Allyson Walsh, 2014)