Green Aventurine gemstone or crystal sphere can be used during meditation. You may want to hold the sphere or just gaze upon it when meditating. Green Aventurine is a powerful gem for calming negative emotions such as anger and makes you to feel positive with their healing vibes from the gemstone. Healing: Crystal healing should be done by a professional and in conjunction with traditional medicine. Find a professional in your area who offers a workshop or seminar. It’s an excellent aid for bringing about a higher consciousness and returning your spirit to its natural state of joy. Spheres have a tendency of sending energy out in all directions, which makes them suitable for manifestation programs. A reiki ball, also known as an energy ball and is a very useful healing tool. It is a tool that can keep reiki flowing to people or situations. Gemstone spheres: meaning and symbolism crystal and gemstone balls have been used for divination since at least medieval times. They are a traditional symbol of the occult and hidden wisdom, and much more. The Sphere symbolizes wholeness & acts as an ancient and universal symbol that represents unity, completeness, infinity - the whole universe. Crystal spheres are often used to increase self-awareness and a powerful mind. Closely connected to the spiritual nature of our complete self, crystal spheres help to bring out integrity, clear thinking, and a better union of body, mind and spirit.