You know when is what when you find where
Answer:
Imagery is important in poems because it can allow readers to taste, touch, smell, see, or even hear what is happening in a poem. Sometimes authors are able to cause readers to empathize with their poems by evoking a certain feeling that they want their readers to feel. Also, imagery allows readers to better understand an author's meaning of what occurs in a poem.
So basically all you need to remember is that “Mood= the way the passage makes ME(the reader) feel” and tone is like the authors version of that
