Kundalini
Kundalini shakti, which is considered the invincible power, lies at the base of one's spine. It is a Sanskrit term meaning "coiled power" and refers to the "sleeping serpent," which results in self-awareness and spiritual growth upon awakening. Kundalini shakti may also be referred to as "divine energy" in Western understanding.
Kundalini Shakti is present in every human being but is dormant in most. Also referred to as the "supreme feminine power" and "basic raw force," the shakti is mentioned in many sacred texts of Hinduism. Kundalini shakti is the feminine power that lies coiled at the base of the spine. On awakening, it travels up the spine to the Sahasrara to unite with Shiva, the masculine power. They are seen as a merging of the inner feminine and inner masculine.