Animal
"As an archetype, the animal stands for the lowest instinctive levels of the subconscious. Animals are symbols of both physical and spiritual cosmic powers. The signs of the Zodiac, as typifying cosmic energy, are examples of this. Ancient Egyptian gods were depicted with the heads of animals, and the four Evangelists are symbolized by them, while the Holy Spirit is given the form of a dove.

Animals, so frequently recurrent in dreams and works of art, embody partial identifications with man, aspects, images of his complex nature, mirrors of his secret motivations and of subjugated or uncontrolled instincts. Each corresponds to a part of our selves, either integrated of to be integrated into a single harmonious personality."
-A Dictionary of Symbols, Jean Chevalier