A review of the first tetrad discussing adjusting the mode of observation. For samatha mode, the preliminary signs of breath touch is calmed to a perception of the feint effect of the breathing process.
Overview of the second tetrad, with emphasis on step five (piti); five kinds of piti presented and five jhanic factors as preparation for jhanas and antidotes to hinderances.
Reflections of various renditions of Piti from the Patisambhidamagga. And the natural cascade of arising of piti through the Seven Factors of Awakening, as outlined in the Anapanasati Sutta.
Reflections on two sources of sukka: the object and the body. Three signs for the quality of observation for sukkha: sign of effort, sign of samadhi, sign of equanimity. ( AN:3,102)
The objctive of the Second Tetrad is discussed in a broad framework - with doctrine readings and humor-filled anecdotes - to inspire us to reflect on our life's objective.
Letting go of mental formations by letting sanna (perceptions) and vedana (feeling tones) simply be. Selfing, (as contraction & craving), is distinguished from wholesome subjectivity.