Kundalini, Mother of Universe

In Hinduism, Kundalini is a form of divine feminine energy (or Shakti) believed to be located at the base of the spine, in the muladhara. It is an important concept in Śhaiva Tantra, where it is believed to be a force or power associated with the divine feminine or the formless aspect of the Goddess.

This book goes into depth about the kundalini