The Preacher's Philosophy
The Grapes of WrathTraces the development and impact of Jim Casy's secular humanist philosophy throughout the novel.
increasing
Bearing strength in each event
decreasing
The Rejection of Sin

The New Understanding
The Confession
Casy confesses his past hypocrisy. He used to preach and then sin. He realizes that sin and virtue are human constructs.
The Conclusion
He decides there is no sin, only human actions. He rejects the old religion. He seeks a new truth.
The Freedom
This realization frees him. He can be honest. He no longer feels guilty. His philosophy is born.
The Unity of All

The Big Soul
The Revelation
Casy believes all people are part of one big soul. He says, "Maybe all men got one big soul ever'body's a part of."
The Love
He loves people, not Jesus. His love is universal. He wants to be with the people.
The Practice
Casy lives his philosophy. He helps others. He sacrifices himself. His actions are consistent with his beliefs.
The Legacy

The Continuation
Tom's Adoption
Tom Joad adopts Casy's philosophy. He says he will be everywhere there is a fight. Casy's ideas live on.
The Final Act
Rose of Sharon's act of charity is a realization of Casy's vision. She gives life to a stranger. The big soul is affirmed.
The Meaning
Casy's philosophy is the novel's moral core. It offers a way forward. The individual is part of the whole.
early in the story
throughout the story
after Casy's death