
Soundarya Lahari, composed by Sankara, is a fine treatise on Tantra.
The Chakras are described in a beautiful sloka
Mahim Mooladhare Kamapi Manipoore Huthavaham
Sthitham Swadhishtane Hridi Maruthamakashamupari
Manopir Bhroomadhya Sakalamapi hitwa Kulapadam
Sahasrare Chakre saha rahasi patya viharase !
Maheem Mooladhare - She, the Kundalini is coiled in the Muladhara, in the Manipura, Swadhishtana , in the Anahata, in the Vishuddhi, in the Ajna and ultimately She sports with her Husband, the Absolute Self, in the Sahasrara !
This is a sloka worth byhearting !