Chakras: Centers of spiritual power in the human body, usually considered to be seven in number.
The root chakra is the first chakra and is located at the base of the spine. It is the root of your being and establishes the deepest connections with your physical body, your environment. The Muladhara is the most instinctual of all chakras — it is your survival center. Your fight-or-flight response is initiated from this chakra. This is your primal, animal nature.