Wear the adjustable thistle ring as an amulet of protection. The thistle, nature's prickliest flower, represents overcoming adversity to become resilient and brave, and serves as a reminder that the only thing standing between a beautiful flower and a pesky weed is judgment. Those who study herbs and natural remedies know the thistle as the flower of the sun, and the herb of witches. It's used to protect against evildoers because evil cannot look directly at the sun. That's why you can find thistles near the front doors of witches, and burning their seeds wards off malevolent spirits. In the same vein, when a thistle appears on a tarot card, it usually means an unseen threat.