Crystals and gemstones are believed to have unique energies and properties that can help in energy healing practices. They are often used to balance and harmonize the body's energy centers, also known as chakras, by absorbing, redirecting, or amplifying energy. Different crystals are associated with specific healing benefits, such as promoting relaxation, boosting confidence, or enhancing intuition. Practitioners may place crystals on or around the body, or use them in meditation or visualization exercises to support energetic healing processes.