Kundalini is a rigorous yoga involving meditation, chanting, and breath exercises which harmonize the body’s energy centers, or chakras, and tune the nervous and glandular systems. The glamour girl of Kundalini is Gurmukh Kaur Khalsa, an erstwhile flower child and veteran of love-ins, whose Golden Bridge Yoga center in Los Angeles is the hub of her empire; a second branch recently opened in Manhattan. Many Hollywood figures (Courtney Love, Jake Gyllenhaal, Heath Ledger, Michelle Williams) have taken her classes, alongside civilians who have become addicted to the yoga’s powerful positive effects on physical and psychic well-being. Photographed in the Ganges River near Rishikish.