We begin with guidance to develop samadhi (concentration). About mid-way through, we move to mindfulness practice, cultivating insight, and then to two important areas of liberating insight--insight into impermanence and insight into reactivity (the most fundamental meaning of dukkha).
Sound of Silence, tranquility and equanimity, not-self, for goodness sake, samadhi sensations, letting go in meditation, realizing Nibbana and sticking around afterwards.