What are coffin nails for?

Coffin nail is called soul nail in geomantic omen. Nail seven of them into the soul. In ancient times, coffin nails were used to bury coffins. This nail is said to kill spirits and increase happiness. Because of its low cost and overbearing effect, it has often become a weapon for some Taoists to make seven-star swords to exorcise demons, summon gods, and make demons and ghosts emit three clear bells, mirrors and other instruments. Slowly, people made the town safe, and the whole coffin was nailed directly to the gate to ward off evil spirits. It is also made into various protective devices. A bracelet. Ankle, ring. Bracelet necklace. It is said that it has the same effect. Ancient times! How many have you never heard of? Modern people, rich in gold and silver jewelry, slowly forget to use coffin nails as jewelry. Can these traditional things be preserved?