This truly theosophical book strictly insists on observing the sanctity of Sunday and the duty of fasting on Wednesday and Friday. And with simple, yet clear and categorical words, it shows us that behind the apparent form lies the entire depth of the essence of Christian faith, as without sacrificial love, virtues that make a Christian's life truly genuine cannot be acquired.

A fundamental principle of our Church says: "Practice is the foundation of theory." That is, from the observance of forms, we ascend to the essence. We can ascend to spiritual "theory" only through the observance of forms. Only after strict observance of the forms.

The Holy Epistle is a very small book, but rich in great teachings. And it has a special grace, as it is addressed to the least of Jesus' brothers.

It conveys in very simple, yet very dynamic words, in the language and vocabulary of the common person, the essence of faith. It speaks of salvation and redemption through Jesus Christ; of Christ's providence and omnipotence; of judgment; of recompense; of the responsibility of parents and priests and every believer. It implements the Gospel (even with fervor): "Compel them to come in" (Luke 14:23)!!! It makes the reader deeply love Christ; it pushes them towards an apostolic type of spiritual union with Christ; it makes the person of Christ the center of our lives. What could be more essential than this?