> I don't see how it is necessary as an aid to recall of the sensation.
Because the nature of language itself is that of compression. In fact, this is why there are often miscommunications, and significantly more on the internet than with people you know well.
Language works kinda like this: Alice has a thought in their head, they compress that thought into words, Bob hears the words and decompresses the words into thoughts.
The intent is so that we can communicate thoughts between one another. But our compression and decompression algorithms are different. Quite incredible when you think about it, since these are fuzzy algorithms so the decompression algorithm works for even different compression algorithms. You can work with someone speaking a broken form of your language or even a completely different language (mutually intelligible). In fact, you can train yourself to be better at decoding and you may notice someone that hangs out with "foreigners" a lot is easily able to understand someone speaking in a broken form of your language with a heavy accent while this is completely unintelligible to another person. This can even be done with novel source languages and accents. (try turning off the subtitles and you'll get better).
But the major miscommunication issue is the priors that our compression and decompression algorithms work with. The previous concept works because we broaden the possible priors, but if you assert strict ones you will miscommunication more and misunderstand more. This is why when people try to deceive you they will assert very narrow ways of understanding certain words. But in reality, words only mean what we mean them to mean, as the purpose of language is only to communicate thoughts in heads. But that's why good faith is so important. You shouldn't just try very hard to make sure your words are easy to interpret, but also try very hard to interpret the intent behind the words of another. Reading between the lines isn't only for hidden messages, but every conversation.