Kundalini names the coiled power of Shakti in the person: latent, and capable of rising as consciousness. In later popular speech it is treated as a serpent in the spine that a teacher can “raise.”
Within the International Nath Order that popular reading is refused. Mahendranath wrote that Laya Yoga was distorted into a snake-trick and exploited. The power is Shakti; the work is meditation, tantra, and the three Shaktis—Iccha, Jnana, Kriya. The Tantra of Blowing the Mind is the Scroll that treats the centers. This page names the word. It does not teach a raising.