In the book of the Holy Apostle and Evangelist John the Theologian, the Apocalypse, which completes the New Testament, the future destinies of humanity and the whole world are mysteriously revealed. This divine revelation is an integral part of the Lord's providence for people. But in order to understand this book correctly and receive spiritual benefits from reading it, every Christian should familiarize himself with how the holy fathers interpreted it. This book presents the Orthodox reader with such an opportunity.