Double-Terminated Quartz Crystals have definite points at both ends which radiates or absorbs energy at both ends simultaneously, channeling it in two directions at once. It is said to be a powerful protective, cleansing, and energizing stone. It can help to absorb and dissipate negativity from others and intensify positive energy. It is one of the most versatile crystals and will work on all levels to bring balance and harmony. Double-terminated quartz crystals are also excellent for sleeping and dreaming. Sleeping with one under the pillow, helps in dream lucidity and recall.