During this talk, Peter describes the challenges encountered in practicing mindfulness of breathing meditation for the cultivation of entry stages of jhana, a highly concentrated state of mind.  This practice requires a careful balance of energy and tranquility applied through the persistent uninterrupted attention to a very subtle transition from sensational breath awareness to the mind-constructed phenomenon called a nimitta.  He talks about how he overcame doubts and resistance during the retreat.  This talk also includes questions from those participating in the meeting. The next talk will begin a long series of discussions reviewing why meditation practice is important and the foundational concepts of the Four Noble Truths.