One other thing to note: permission to be a hermit is only granted to monks after many years of being part of the community of monks. To go off alone as a monk is very spiritually perilous for the first few years. It takes a long time to gain the discernment necessary to be a hermit monk, and some monks are never given that permission by their spiritual father.
A Benedictine once put it more or less this way to me: community life causes the monks to round off each other's sharp edges over time. A solitary life is generally not good for people.
Check out "Into Great Silence" for a film about life in the Grand Chartreuse, the motherhouse of the Carthusian order. I recall reading some years ago that it is one of the few (only?) orders in the Catholic Church that has never needed reform. Carthusians only talk to each other once a week I believe -- interesting monastic order.
There is also a relevant classic work on the Jesus Prayer so used by the East: The Way of a Pilgrim. It's about a man who is determined to find out how to pray without ceasing. He becomes a solitary mystic is how I would describe it.
The first half of this book is a recollection of life as a monk on Mt Athos (the second half is a collection of the monk's teachings as an elder): Wounded by Love: The Life and Wisdom of Saint Porphyrios.
Another good book is The Gurus, The Young Man, and Elder Paisios by Dionysios Farasiotis. This one has a lot more detail about life on Mt Athos. Also, it's important to note that Elder Paisios has been venerated and is now Saint Paisios.
