Melissa Reece, a priestess of the Crystal Sunflower, discusses the ancient practice of pendulum dowsing. Melissa describes pendulums as tools for divination, similar to tarot, primarily used for yes or no questions by interpreting its swings. She emphasizes the importance of cleansing and introducing oneself to the pendulum each session, explaining the spiritual and sometimes scientific perspectives on its movements. She also shares her personal journey into dowsing and offers practical demonstrations for using pendulums to answer questions.