Billy is a Spiritual Teacher and Yoga Teacher in the Kashmir Tradition, and author of the book "The Mirage of Separation". He had a strong spiritual orientation early in life and started to explore non-dualistic teachings in his twenties. He met Jean Klein, a master of Advaita and Yoga who became his teacher for 14 years. He practiced the 'Art of Listening' and self-inquiry and then one day, while on a silent retreat, "all identification with a separate Entity dissolved" and he then knew himself as Silence.