Kundalini energy

Kundalini (Sanskrit kuṇḍalinī, कुण्डलिनी,  pronunciation , "coiled one"), in the concept of Dharma, refers to a form of primal energy (or shakti) said to be located at the base of the spine. Different spiritual traditions teach methods of "awakening" kundalini for the purpose of reaching spiritual enlightenment and a range of supernormal powers. Writer Joseph Campbell describes the concept of Kundalini as “the figure of a coiled female serpent—a serpent goddess not of "gross" but of "subtle" substance - which is to be thought of as residing in a torpid, slumbering state in a subtle center, the first of the seven, near the base of the spine: the aim of the yoga then being to rouse this serpent, lift her head, and bring her up a subtle nerve or channel of the spine to the so-called “thousand-petaled lotus” (Sahasrara) at the crown of the head...She, rising from the lowest to the highest lotus center, will pass through and wake the five between, and with each waking the psychology and personality of the practitioner will be altogether and fundamentally transformed.”

Kundalini awakening is said to result from deep meditation, and consequently enlightenment and bliss. However, as each individual is unique, Kundalini awakenings can happen through a variety of methods not limited to deep meditation. This awakening involves the Kundalini physically moving up the central channel to reach within the Sahasrara Chakra at the top of the head. Many systems of yoga focus on awakening Kundalini through meditation, pranayama breathing, the practice of asana and chanting of mantras. In physical terms, the Kundalini experience is frequently reported to be a feeling of electric current running along the spine.

...
Wikipedia