This introduction to prayer is just over 100 pages, but the book is still brimming with insight. The writing is natural and enjoyable. So much so that I present an outline of the book in quotes:
Chapter 1: What Prayer Is
"Hearing or listening is a good metaphor for prayer. The good pray-er is above all a good listener. Prayer is dialogue; it is a personal encounter in love."
Chapter 2: The "Irrelevance" of Prayer
"If we try to determine its relevance, to justify it by showing that it is useful, it slips through our fingers...the experience itself is the only proof, the only justification."
Chapter 3: The Relevance of Prayer: Discernment
"Similarly, in our relationship with God the signs or touchstones of mature love are instinctive judgments about what would please him, instinctive sensitivity to the quiet word or small gesture which anyone except a lover would overlook."
Chapter 4: Are There Techniques of Prayer?
"We have been discussing various techniques for coming to attentive quiet before the Lord. Not all of them are prayer proper--i.e., a personal encounter with God in love--but they are a normal prerequisite for prayer."
Chapter 5: The Active Purification of the Soul
"The problem is not too many loves, but the fact that our loves are in conflict, are eccentric, not centered and integrated. This is the root problem for every pray-er, whether married or celibate. We can have many loves in our lives, but only one center, one sun around which all our loves are satellites."
Chapter 6: The Ways of Prayer of Beginners
"We may say that meditation is not properly prayer in the sense we have defined it (a personal encounter with God in love)--but, because love depends on knowledge, meditation on the scripture is an essential first step to genuine prayer. Thus it is the principal activity of beginners when they come to pray."