Final answer:
Themes are universal means that they resonate with people across different cultures and times, addressing common human experiences and emotions. They are ideas or concepts that are of interest or concern to all cultures and societies.
Step-by-step explanation:
When we say that 'Themes are universal,' it means that themes resonate with people across different cultures and times. Universal themes are ideas or concepts that are of interest or concern to all cultures and societies. They address common human experiences and emotions, such as love, friendship, and the search for meaning in life. These themes can be found in literature from various time periods and cultures, as they reflect universal aspects of the human condition.