How can I say, when I see a gay picnic party of men and women and old people and children, what part of their pleasures is material and what part spiritual?

• 当我看见一群男女老幼在举行一个欢乐的野宴时，我怎么说得出在他们的欢乐中哪一部分是物质的，哪一部分是精神的呢?