Sigmund Freud was a well-known dream psychologist of the 1930s, who believed that dreams are the passageway to our unconsciousness. According to him, animals represent instincts in your vision.
Most people leave their instincts aside when they make an important decision in life because they feel it would lead them to make a bad decision. At this time, it is possible that you see a vision of an animal that will urge you to listen to the voice coming from the inside.