Comment by globular-toast

Right, and the exact same thing happens in all human languages. The reason we have words for things is they are common enough ideas to warrant one. There is probably no word for "the feeling one gets when floating in a sea of beans", although I am, of course, able to express this explicitly. If this feeling became important enough we'd probably start getting a word for it, possibly starting with a portmanteau like "beanfloat".

Ultimately we're just lazy and don't like having to use lots of words over and over again.