Symbols in Candide
Some critics believe that these final lines illustrate how Voltaire's characters are finally taking control of their lives. Their garden has become a symbol of their destiny, which they're finally creating rather than allowing the world to decide it for them. Their decision to work in the garden and stop philosophizing has allowed them to at last be content. In the end, Voltaire's message is that we should just live our rather than spend all our time thinking about what it all means.