by Ven. Pa-Auk Sayadaw
This book contains the instructions for mindfulness-of-breathing meditation, the four-elements meditation, and the subsequent detailed discernment of materiality. The last section of this book covers some of the relevant theory. Several pages have been added by the Sayadaw covering the balancing of the five controlling faculties and seven factors of enlightenment. There is also the addition of his explanation of the difference between the experience of Nibbàna and the experience of life-continuum (bhavanga).