Kundalini is considered to be a form of sacred feminine energy that lies dormant at the base of the human spine, called mooladhara, like a serpent. This is pure, formless energy which has immense potential if awakened. Shaiva tantra calls this energy or ‘shakti’ Mother Divine, or formless aspect of the Goddess. Swami Satyananda Saraswathi, a great master of Kundalini yoga and author of Kundalini Tantra says that though you may be generally aware of what Yoga is, you require some kind of awareness of what Tantra is in order to appreciate the mysterious working of Kundalini yoga.