Amethyst is a stone of peace. Some believe that amethyst's calming presence produces soothing dreams by bringing the dreamer more in tune with the Divine. This clarity and peacefulness also extends to the waking mind. Amethysts are said to help the mind flow freely in both mental and metaphysical dimensions.
Agate enhances mental function, improves concentration, enhances perception and analytical abilities. It is a soothing and calming gemstone that heals inner anger, anxiety and helps in the strengthening of relationships.