In John Steinbeck's "The Grapes of Wrath," the quote highlights the practical reality of life over reliance on faith alone. It suggests that while prayer may offer comfort or hope, it is action and hard work that ultimately yield results. The metaphor of needing a pig to provide meat emphasizes that tangible effort is essential to survive and prosper. The connection between faith and action is a central theme in the novel.

Steinbeck's message stresses that during difficult times, such as the Great Depression depicted in the book, people must engage actively with their circumstances. Instead of waiting for relief through prayer, it is through their own labor and determination that they can secure their needs. This reflects the broader struggles of the characters and their fight for survival and dignity in an unforgiving world.