Tina Rasmussen, Ph.D., began meditating at age 13, and has practiced in the Theravada and Tibetan Buddhist traditions for 30+ years. In 2003, after many years of Buddhist practice, she was drawn to undertake an intensive year-long solo retreat in which profound experiences occurred. In 2004, Tina took refuge with Tibetan Buddhist teacher Tsoknyi Rinpoche, and was initiated into the Nyingma lineage. In 2005, Tina attended a 2-month retreat with Burmese meditation master Ven. Pa Auk Sayadaw, who ordained her as a Theravadan Buddhist nun and gave her the dharma name “Ayya Pesala.” During the retreat, Tina became the first Western woman to complete the entire detailed Samatha path in this lineage. Since 2006, Tina has also been involved in the Diamond Approach to realization. Tina has been studied by Yale Neuroscience Lab for research on the effects of meditation on consciousness and the brain, and is the co-author of Practicing the Jhanas (Shambhala), as well as several books on human potential. She has been featured on Buddha at the Gas Pump, Deconstructing Yourself, Buddhist Geeks, GuruViking, After Awakening, the Imperfect Buddha, Rick Hanson’s Wednesday Meditation, Awakening Women, Non-duality Magazine, Conscious TV, and others. Dr. Rasmussen now leads retreats and offers spiritual guidance and mentoring to practitioners worldwide. She has a Ph.D. in human and organizational development, and worked as an executive coach and consultant in the business world for more than 25 years.