T.S. Eliot describe Objective Correlative as “a set of objects, a situation or a chain of events which shall be the formula of that particular emotion” (“Hamlet,” 1919).
The feeling that the poet is trying to express is connected to the image that helps to convey that emotion to the reader.
T. S. Eliot
Eliot thought that Shakespeare wasn't able to make the audience feeling as Prince Hamlet did through images instead only the play’s dialogue.