In Ancient Egypt thescarab beetle symbolised eternal life and rebirth. Scarabs held great religious power and protective abilities.
Kephri, the scarab-headed god, rolled the sun across the sky each day, where it died at night and was reborn in the morning. Scarabs also embodied the cycle of creation due to the 'magical' way the beetles produce offspring, which you can read more about below.
Scarab amulets would lend the sacred beetle's power to the wearer. They offered a person magical protection against the dangers of this world, as well as those of the next.