Hie thee over to the Byzantine Anglo-Catholic’s place for a fascinating post on the Camaldolese order and their spirituality. I’m stealing from there the entirity of the Brief Rule left by their founder.

Brief Rule

Sit in your cell as in paradise.
Put the whole world behind you and forget it.
Watch your thoughts like a good fisherman watching for fish.
The path you must follow is in the Psalms–never leave it.
If you have just come to the monastery, and in spite of
your good will, you cannot accomplish what you want,
take every opportunity you can to sing the Psalms in your heart
and to understand them with your mind.
And if your mind wanders as you read, do not give up;
hurry back and apply your mind to the words once more.
Realize above all that you are in God’s presence, and stand there
with the attitude of one who stands before the emperor.
Empty yourself completely and sit waiting, content with the grace of God,
like the chick who tastes nothing and eats nothing but what his mother brings him.