The book "Heavenly Happiness from the Father of the Society of Jesus" was written by the father of the Society of Jesus, F. J. Boudreau. In this work, the author explores the concept of heavenly happiness and answers the question of what awaits us after death. He describes the delights of heaven, speaks of eternal bliss, and communicates with the reader the understanding of worldly joys and heavenly joys. This book is a spiritual contemplative work that encourages readers to rethink life and hope for happiness in eternity.