Without spiritual perception, you cannot consciously experience the delight of divine things.
If you dull your physical senses, you make them insensible to sensory things, and you neither see, hear, nor smell, but are paralyzed or, rather, half-dead; similarly, if through the passions you deaden the natural powers of your soul you make them insensible to the activity of the mysteries of the Spirit and you cannot participate in them.
If you are spiritually blind, deaf and insensible, you are as dead: Christ does not live in you, and you do not live and act in Christ.
-St Gregory of Sinai
St Gregory of Sinai (1260-1346) was a monk at St Catherine’s Monastery on Mt Sinai in Egypt who was instrumental in preserving the tradition of hesychia on Mount Athos and bringing it to Bulgaria.
The Monastery of Saint Catherine, named in honor of the third century Great Martyr of Alexandria, is one of the holiest sites for Orthodox Christians. It is located at the foot of Mount Sinai, Egypt. On this site the Prophet and Hebrew patriarch Moses, traditionally viewed by Christians, Jews and Muslims as the author of the Pentateuch, received the first Ten Commandments from God. Erected by order of Byzantine Emperor Justinian I (r. 527-565), the monastery also encloses the Chapel of the Burning Bush.