Very frequently, as is the case in Gadamer, this meaning is called "the subject matter": that is to say, what--in thinking about literature in terms of form and content, let's say--we'd call "content."

高达美，又把这一含义称为主题：,当我们研究文学的,形式和内容方面时，主题即内容“

耶鲁公开课 - 文学理论导论课程节选

In other words, the effort of a reader in coming to terms with the meaning of a text is an effort to master the subject matter, what is there, what the text is really about.

也就是说读者为理解文本,做出的努力,就是来掌握事情本身，存在的努力，掌握文本究竟是关于什么的努力。

耶鲁公开课 - 文学理论导论课程节选