Light is the antithesis of dark, and heaven is the antithesis of hell.
The literary device can be used to contrast the inherent two sides `to every person, situation, place, and thing that exists in the universe.
Antithesis is the use of contrasting concepts, words, or sentences within parallel grammatical structures.
This combination of a balanced structure with opposite ideas serves to highlight the contrast between them.
An antithesis is, literally, the opposite of the thesis; so, if the thesis were to be the protagonist of a story, then the antithesis would be the antagonist.
Likewise, if the thesis were to be democracy, then the antithesis would be tyranny.
The definition of antithesis requires this balanced grammatical structure.
The use of antithesis is very popular in speeches and common idioms, as the inherent contrasts often make antithesis quite memorable.
Juxtaposition is used by many authors in order to portray deeper characterization, and create suspense and rhetorical effect.
Juxtaposing characters who are predominantly good with characters who are predominantly evil, for instance, brings out their strongest qualities in the readers’ minds.