Tina Rasmussen - Jhana & Non-duality

What is jhana? Why do people have difficulty from first sit to absorption? What is non-duality? What is awakening? Is cessation required to have awakening? Tina Rasmussen has been practicing meditation for several decades. She is the co-author of the book "Practicing the Jhanas: Traditional Concentration Meditation as Taught by Venerable Pa-Auk Sayadaw. She describes her time with with Pa-Auk Sayadaw, doing a year long solo retreat and her experience teaching both jhana and dzogchen on meditation retreats.