Wikipedia
Animal soul
In kabbalah, the animal soul (; nefesh habehamit) is one of the two souls of a Jew. It is the soul that gives life to the physical body, as stated in Tanya, and is the source of animalistic desires as well as innate Jewish characteristics such as kindness and compassion. Although its initial desire is to seek out worldly, physical pleasures, it can be trained to desire spiritual pleasures instead through the guidance of the divine soul.
Usage examples of "animal soul".
So much of their life was spent pretending to be human, pretending to be civilized, that it was good to let one's animal soul rear its head at last.
This ensemble typifies the struggle between conscience and the passions, between the divine soul and the animal soul.