This is a revised and enlarged edition of The Cycle of Life, which was first published eleven years ago in 2008. The second, third and fourth editions were printed in 2010, 2014 and 2016 at Phương Đông Publishing. In presenting this edition at HUONG SEN print. I have preserved the original version as the first edition. However, for the sake of clarity, a few changes have been made; errors have been corrected for better use and service, together with summary and discussion questions at the end of each chapter. I would like to gratefully acknowledge with special thanks Bhikkhunī Viên Quang, Sikkhamana Diệu Nga and Pamela C. Kirby (English editors who worked as my assistants for English translating, proofreading, design and publication). We rejoice in introducing readers near and far to the Dharma and invite corrections and comments from our readers to be incorporated into future printings. We look forward to hearing from you.