Metaphysically, Sunstone is known for its powerful connection to the light and power of the sun. Once known as a stone of good luck, Sunstone has a bright, joyful energy that increases vitality and lightens dark moods. Sunstone is linked with the Moonstone. Sunstone holds the solar (masculine) energy of the Sun, while Moonstone holds the lunar (feminine) energy of the Moon. Together, these two stones bring a perfect harmony of healing, protection, success, love, peace and spirituality. They are the perfect balance of light and dark yin and yang masculine and feminine.