An impression is left of a vague description. Function- industry- or design.
They go to their prefered search engine and start typing descriptions or keywords that may find the product they had heard or seen.
Say it's a pen... a really cool pen.. They will type anything from 'cool pen' to 'rustic pen' or 'new pen on Facebook' or a variety of things that aren't actually your products brand or listing title.
Using these long key words in blogs and articles is SEO - Search Engine Optimisation.
People find you by the strangest ways and you need to dominate the key words related.
Google for example loves fresh content and will put you on page one automatically if your using the right search terms and converting thier users. Publish new blogs or articles every week if you can. Google is a beast at converting. Pick a keyword and repeat it through out your articles. Even a picture can have SEO.