This structure and guide represents the typical Pointing Out the Great Way structure of a carefull constructed meditation. The sequence aims at letting the student walk through this "path" in an order whereby one step requires the previous steps of concentration or insight.  They key in these meditations is not intellectual insight or theory, but an experience from the inside.  In the retreats, each of these steps is introduced separately, usually accompaned by explanations into history, neuroscience and other material.  However, the core is induction of the  meditative experience itself.