Romani folklore encompasses the folktales, myths, oral traditions, and legends of the Romani people. The Romani were nomadic when they departed India during the Middle Ages. They migrated widely, particularly to Europe, while other groups stayed and became sedentary. Some legends (often from non-Romani peoples) say that certain Romani have passive psychic powers such as empathy, precognition, retrocognition, or psychometry. Other legends include the ability to levitate, travel through astral projection by way of meditation, invoke curses or blessings, conjure or channel spirits, and skill with illusion-casting.