There are three primary colors—red, yellow, and blue—from which all colors in the spectrum can be created. Likewise, there are three primary elements from which all earthly things are formed: land, air, and water. These correspond to the three states of matter: solid, gas, and liquid. Correspondingly, the human trichotomy consists of body, spirit, and mind. Red stands for land, as land stands for the body. Yellow stands for air, as air stands for the spirit. Blue stands for water, as water stands for the mind.