Yellow represents the Spiritual Solar Plexus (Third) Chakra which is positioned below your ribs and above the naval. In essence your solar plexus is a group of nerves that has a very 'radiating' appearance to it, which is why it got its name. This chakra is in control of your energies and activities connecting us to one's own personal power, abundance, courage and self confidence.Yellow is full of creative and intellectual energy. A "sun color" it makes us cheerful and optimistic. Mandala is a Sanskrit word that means "circle". Wherever a center is found radiating outward and inward, there is wholeness - a mandala.