The monograph of Professor of the University of Athens N. Vasiliadis highlights the most important problem of human life and Orthodox theology - the problem of death. The book shows, on the one hand, the impotence of ancient and secular philosophy to give a satisfactory answer to this question that frightens an unbeliever, and, on the other hand, reveals the teachings of the Eastern Church about the sacrament of death and future eternal life. The monograph widely presents the opinions of the holy fathers on this problem.