Answer + Explanation:
The definition of allusion is a brief and indirect reference to a person, place, thing or idea of historical, cultural, literary or political significance. (Allusion)
In the same way that readers can understand metaphors, words that have meaning beyond their literal interpretation, they can also understand allusions—it’s the same basic psychology. In fact, for well constructed metaphors and well constructed allusions, this process of knowing the other meaning or greater subject surrounding these words is subconscious; it happens instantly and naturally.
Authors are able to evoke certain images and memories in their readers by describing something in passing.
First, there may not be room or time. Second—and I think, more importantly—<u>using allusions allows the reader to do quick and subconscious deduction, which involves them more in what they are reader and may even give a sense of cleverness</u>.
Third is that it simply is <u>fun and rewarding to find hidden things</u>. In order to find allusions, the reader (in case of textual allusions) needs to know to what the author alludes.
Also there are <u>issues which an author may not want to address directly</u>. The author may (for various reasons) want to be unclear. By addressing issues via an allusion, the author shifts the responsibility for interpreting his thoughts to the reader.
