Written shortly before the first millennium of Christianity, the prayers of St. Gregory of Narek have long been recognized as gems of Christian literature. St. Gregory called his book an "encyclopedia of prayer for all nations". It was his hope that it would serve as a guide to prayer by people of all stations around the world.

A leader of the well-developed school of Armenian mysticism at Narek Monastery, at the request of his brethren he set out to find an answer to an imponderable question: what can one offer to God, our creator, who already has everything and knows everything better than we could ever express it? To this question, posed by the prophets, psalmist, apostles and saints, he gives a humble answer – the sighs of the heart – expressed in his Book of Prayer, also called the Book of Lamentations.