Trusting in the Lord is something easier said than done for some of us. If the truth be told, the basis for so many sins is a lack of trust in God...the idea that we can't trust God to do what is best for us. It's one of those things that often makes its way to confession in one way or another.
And often I get a penance along the lines of "spend some time in prayer thanking God for the way he works in your life." Sometimes it seems like kind of a "nothing" penance. Always good, but not real demanding or time-consuming, and certainly not unpleasant.
But now I get the connection...the way to build trust in the Lord, the good Monsignor said, is in prayer. Forget about the "gimme list" he said. God already knows what's on that. Spend time, instead - perhaps daily - reflecting on the graces God has given you, the jams He's gotten you out of, the good things he has done for you. That builds trust.