The natural, intrinsic state of every sentient being. Dzogchen (Wylie: dzogs chen) or "Great Perfection", also called Atiyoga, is a tradition of teachings in Tibetan Buddhism, aimed at attaining and maintaining the natural, primordial state or natural condition. It is a central teaching of the Nyingma school of Tibetan Buddhism and of Bon. In these traditions, Dzogchen is the highest and most definitive path of the nine vehicles to liberation.
Example via www.ramdass.org: Tulku Urgyen Rinpoche
Example via www.mindpodnetwork.com: Lama Surya Das – Dzogchen Non-Meditation