Agate is a stone of strength and harmony. It strengthens the intellect, enhances concentration and analytical abilities (making it especially useful for students and actors), brings good fortune, boosts energy, and provides grounding. It promotes longevity. It offers emotional strength, dispels fear, and alleviates stress. Agate encourages speaking only the truth. On an emotional level, this crystal helps one cope with negative emotions and heartbreak; it releases inner anger and bestows the love and strength needed to start anew.