“By the Peacock” was a sacred oath, because the peacock was thought to have the power of resurrection, like the Phoenix. A necklace of Amethyst, peacock feathers, and swallow feathers were a talisman to protect its wearer from witches&amp; sorcerers. Christians thought, in early times, that the peacock&#39;s blood could kill evil spirits. Two peacocks drinking from a chalice symbolizes rebirth and angels are often depicted with four wings of peacock feathers.