Abstract: Feng Zikai is famous for his pictures,his essays are also very good.But not only his essays but also his pictures,in which we can find a kind of inherent spirit.The spirit is also the center of the system of his works.We can summarize it in one phrase:conditioning cause.It is not only the cause of Feng Zikai's works,but also the result of these works.It relates to religion tightly,but not the simple copy of religion in the art and literature.It is the profound understanding of Feng Zikai about the worth of life comes from his own experience.