"Sabbath Hours" by Austin Phelps delves into the concept of heaven and the afterlife, focusing on the idea of a heavenly home. The book explores the biblical perspective of heaven, emphasizing the presence of Christ as central to the heavenly experience. It discusses the social organization, activities, and relationships in heaven, portraying it as a vibrant and bustling place. The text also highlights the significance of prayer as a connection between earthly and heavenly realms, with a central theme of finding comfort and belonging in the presence of Christ in the afterlife.