Book excerpt: In this playful and sexually savvy guide, ''Dr. Cheryl'' Fraser presents enlivening mindfulness practices, techniques from couples and sex therapy, and the wisdom of Buddhist teachings to help couples spark the passion and thrill they've been seeking. With this spiritually scintillating book, couples can break the monotony of familiar routines and bring a little nirvana back to the bedroom for a more exciting, loving, and fulfilling and relationship.