Prayer is the language of the people who are in trouble and know it, and who believe or hope that God can get them out...Issac Bashevis Singer once said, "I only pray when I am in trouble. But I am in trouble all the time, and so I pray all the time." The recipe for obeying St. Paul's "Pray without ceasing" is not a strict ascetical regimen but a watchful recognition of the trouble we are in.
-Eugene Peterson, Answering God: The Psalms as Tools for Prayer, 36-37.
Commonplace-book. Formerly Book of common places. orig. A book in which ‘commonplaces’ or passages important for reference were collected, usually under general heads; hence, a book in which one records passages or matters to be especially remembered or referred to, with or without arrangement. First usage recorded: 1578. - OED