The elements symbolize the total sum of the universe, including humanity. It is divided in solid (earth), liquid (water), and gaseous (air). Each part can transform into the other two by using energy (fire). Psychological traits of the dreamer may be represented in each of these elements. Its balance denotes completeness and integrity. (See water , land , air , and fire ) In astrology, the four elements are the essential qualities of human beings. The earth is fertility and loyalty; water, imagination; air, intelligence; and fire, ambition and will. The mystics believed in a fifth element that permeated everything. It was a fluid state of existence called ether. Today, many mediums believe that, thanks to it, astral travels are possible.