Do you ever get sleepy while meditating? In this discourse, the Capala Sutta from the Angutarra Nikaya, the Buddha catches one of his main disciples, Ven. Maha Moggallana nodding off. He then offers him seven strategies for overcoming "sloth and torpor". Identifying with the drowsiness can actually be a doorway to the wisdom of anatta or the selfless nature of reality.
Understanding Self As A Process: Self is an emergent property of the constituents of our experience (i.e. the five aggregates). Practices pointing to anatta are shared, followed by the connection between anatta and peace & freedom.