Chapter 17
What to Read About Prayer
On prayer, read the collection “On Sobriety and Prayer”: there is gathered everything the fathers have said about this. It is not bad to review those chapters in the book on spiritual struggle that speak about prayer. And this much is quite sufficient. Better to labor in the practice of prayer than to speculate about it and read speculations. The matter is very simple.
(Letter 902. Vol. 5, p. 177)