Sufi Order International of North America

YouTube: Mark  Robert Waldman is a therapist and an Associate Fellow at the Center for Spirituality and the Mind, University of Pennsylvania,  where he currently conducts research with Andrew Newberg, MD, on the neurological correlates of beliefs, morality, compassion,  meditation, religious experiences, and spiritual practices.

Bestselling author, political adviser and social and ethical prophet Jeremy Rifkin investigates the evolution of empathy and the profound ways that it has shaped our development and our society.

Llewellyn Vaughan-Lee, a sheikh in the Naqshbandiyya-Mujadidiyya Sufi Order, writes on spiritual maturity and the path of service.