Candle Holder, Agate Rainbow. Handcrafted with extreme precision this Agate Rainbow Lotus Stone Votive Holder is a piece of art. Agate is a stone of strength. Agate enhances creativity and strengthens the intellect, making it a beneficial stone for both students and artists. It is also known as a good luck stone. As a stone of harmony, one of the things agate does is balance yin and yang energy. Agate increases energy. However, because it is a grounding stone, it does not increase energy at all times but rather enables bursts of energy as needed. In this way, agate is a conservation stone and enhances longevity.