Why do people rotate salt and mustard seeds around head?

In some cultures, particularly in India, people rotate salt and mustard seeds around their heads as a ritual to ward off negative energy or evil spirits. This practice is often performed during times of distress or after experiencing a bad omen, as a way to cleanse the individual and bring about protection. The act is symbolic, using the salt and mustard seeds to absorb negativity and restore positive energy. It reflects a blend of cultural beliefs and traditional practices aimed at spiritual well-being.