These are Morning and Evening Prayers for the Eastern Orthodox Church.
This book is of Russian Orthodox Origin and most of the prayer were written by very Holy Men who had attained the Knowledge of God through Theoria.
(When we say "knowledge of God" do not think of it in relations to human reasoning. God is known in a man's Nous - Nous is a Greek word which is often wrongly translated as "mind" in english.
The Nous is "The Eye of the Soul", or it is, "The Purest Part of the Soul").
These prayers were chanted in monotone by the Russian Monk of the Holy Cross.
You can buy the CD with the Prayers on it at their gift-shop online and also the "Psalter", and "The Preparation for Holy Communion".
The online text of the PrayerBook is here:
myriobiblos.gr/texts/english/prayerbook/main.htm
Ещё видео!