“When you say ‘true cause,’ what do you mean?” “A cause that can be relied upon. One that always works. Heat applied to water is a true cause of steam. No matter who applies the heat or how often the heat has been applied before or where in the world heat is applied, the result is always steam. In the case of money or status or relationships”—His Holiness chuckled—“we can easily see these are not true causes of happiness.”