The Inner Smile - Mantak Chia - Universal TAO Publications - 9780935621495 - 2dehands - Als Nieuw - Paperback - Are you smiling or frowning to yourself? Smiling is the secret to health and serenity according to several spiritual traditions. The Inner Smile practice propounds that when we smile like a Buddha, the world beams back. Naturopath, Caroline Robertson visited The Tao Garden to experience some smile therapy.