Cheng argues that travel involves a process of traversing your own inner terrain. She notes that travelers on the road have to directly confront their own weakness, laziness, and discouragement, but in the process discover what the Bible calls "God's wisdom." Each of us can, while on our own unique journeys, uncover our potential, our willpower, and our courage.
鄭華娟說，旅行是一種「往自己內心走去」的過程，旅行者必須在過程中直視自己的軟弱、懶惰、灰心等缺點，但也因此能發現聖經中所說的「屬天的智慧」，每個人都可以在獨一無二的旅程中，發掘潛能、毅力、和勇氣。