Holy Sweat, Tim Hansel, 1987, Word Books Publisher, p. 63
In my late twenties, a bunch of my friends and I decided to sail around the world. I have to admit, though, at the time I was a bit worried. I hadn't even sailed before. I was uneasy and anxious. So I spent a lot of time reading the Bible and praying about it, until it dawned on me that God was whispering, "Tim, I'll give you peace if you read some books on sailing. The reason you're anxious is not due to lack of prayer, but to your lack of sailing knowledge."
I wasn't unprayerful; I was unskilled. So I took a step I needed to take to "let" God work his peace in my heart. I began reading about sailing.