What's the point of wearing spikes?

There is nothing special about wearing spikes.

Spike is a kind of offering or sacred object often used in religious sacrificial ceremonies and magic, which means exorcism. Pendants made of spikes, hung on the chest, can be used as amulets to keep peace and make them auspicious, and can also be used as decorations, which are simple, natural and unrestrained, adding a wild charm to the wearer. Spike, folk believe that sharp claws and sharp teeth of wild animals have the function of dispelling and avoiding. In Mengqianbitan, there is a record that dried crabs are hung on the door to ward off evil spirits. Han, Tibetan and other ethnic groups have the custom of wearing wild animal claws to ward off evil spirits and guard against fright. Spike is especially loved by people because of its beauty, sharpness and tenacity. It is said that it can really bring people good luck, fortune, career, love, happiness and happiness.