Marking a piece of writing as sublime requires a great deal of authority and knowledge of the subject, but it also has a transcendent quality that Longinus hints at, which allows audiences to understand sublimity as more of a feeling, going beyond words into writing that has life of its own. The sublime therefore acts like a subliminal message, transporting a feeling, idea, or message to the reader that will inevitably produce a prescribed effect as the nature of the sublime is inherent. Longinus hints at this quality as he writes, "It is our nature to be elevated and exalted by true sublimity"(350). Sublimity in its raw and true form appeals to what already exists, catering to the subconscious just as a subliminal does.
Longinus continues, "Real sublimity contains much food for reflection, is difficult or rather impossible to resist, and makes a strong and ineffaceable impression on the memory. In a word, reckon those things which please everybody all the time as genuinely and finely sublime"(350). The universal quality of the sublime is also linked to subliminal messaging. The classic example of subliminal messaging was the use of videos before movies in the 1950's of dancing popcorn and coke cartoons. While I doubt Longius would mark this as sublime, there is a message to audiences that is undeniable: you are hungry an thirsty and you will be happy if you go buy our products. Writers are nothing if excellent product-pushers, only the product they are pushing is their own. They want audiences to be moved by their writing and persuade them to feel a certain way. Sublime writing does this without a question, almost without control. The author illustrates this as he writes, "I should myself have no hesitation in saying that there is nothing so productive of grandeur as noble emotion in the right place. It inspires and possesses our words with a kind of madness and divine spirit"(350). Like subliminal messaging, the truly sublime inspires action, though largely emotional. The connection is interesting to consider both linguistically and theoretically.