Death is only the beginning
After dying on Earth, Daniel's soul is taken to Purgatory where his guardian angel will help him get to Heaven. In Purgatory, he will learn what he got wrong, let go of the past, and be purified of his sins. In Albert Oon's 50th book, he will give a unique perspective on the afterlife, how it works, and the reasons why certain souls get sent to certain realms.
*The view of Purgatory expressed in this book are purely fictional even though some of it does coincide with reality. See the Catholic Church's teaching on Purgatory to read about the inspiration for this story.