Almaas&apos;s Diamond Approach who currently leads groups in the San Francisco Bay Area and in the United Kingdom. She began her spiritual journey at the age of 21 as a student of the Chilean psychiatrist and pioneer of the Human Potential Movement, Claudio Naranjo, MD. Sandra is the author of The Spiritual Dimension of the Enneagram: Nine Faces of the Soul and The Enneagram of Passions and Virtues: Finding the Way Home, both of which have been translated into many languages. She has a private practice in Marin County, California.