He's covering his head in a traditional religious fashion, so in order to enter this holy place he covers his head.

他以一种传统的宗教方式包裹他的头，为了进入那个神圣的地方而包裹头。

耶鲁公开课 - 1945年后的美国小说课程节选

I agree is a useful pattern for nodding your head with someone for coming to a similar place.

当你对别人的想法点头称是时，I agree 是一个非常有用的句型。

I agree课堂 - SpeakingMax英语口语达人