Four-leaf clover
1)The Celts (including the Druids in Ireland and Britain) considered the three-leaf clover (clover) to be a sacred plant that could ward off evil spirits. The four-leaf clover was an even more powerful amulet, providing protection against negative forces and providing access to the world of fairies and magic. It also symbolized the four cardinal directions or the four elements (earth, air, water, fire).