I would say that the use of Carpe diem in England during the Renaissance demonstrates the incorporation of Latin into English.
Renaissance was the time when ancient languages became very important, and as you may already know, even today's English is full of Latin words and expressions, such as carpe diem and others.
The author of a book wants to make the reader feel what the topic of book is about. for example if the book is sad, the author wants the reader to feel those emotions.
Answer:
It helps you determine the author’s voice and point of view
Explanation:
So that the reader understand how they lived.