The question seems to me to be “Could you, by purely tonal means, convey the same depth of meaning as in spoken language?”
This question actually has no factual answer. It has not been done to any extensively effective degree, and some people have tried, but that doens’t necessarily mean it CAN’T
Richard Strauss, of “Also Sprach Zarathustra” (aka 2001) fame, was very keen on the idea himself. He reportedly once longed, for example, to write a passage that, when heard, would immediately call to mind the image of a spoon resting on a wooden table, something he never achieved, AFAIK.
The compromise was called “program music”. The music would try to be as evocative as it could, and notes included in the program would be the listener’s guide to what imagery was being attempted.
Two anecdotes relating to this:
Back in the 1980s, I taped some music I wanted a bandmate to hear, on a tape that happened to have my sister’s copy of Andreas Vollenweider’s “White Winds” album on the reverse side, with no notes or title or nothin’. My friend had flipped the tape over and listened to the album, and asked me about it. In particular, he wanted to know about a passage right at the beginning of the album, which made him feel like he was watching a movie where the camera was panning over open water, when suddenly a white ship sails into frame. The passage’s title on the album? “The White Ship (First View)”.
In the 1990s, some friends and I attended a concert of new compositions at the Tsai Performance Center at Boston University. It included a piece of program music, which said that the first part of the piece was meant to evoke the image of a pale, bare tree on a hill seen against a cloudy sky. Jaded as we all were to the self-aggrandizing claims of modern composers, we began to listen with low expectations. Afterwards, while chairs and music stands were being rearranged for the next selection, my friends and I all marvelled at how evocative it had been. The music had achieved Strauss’ ambitions. We could all see the tree in our minds, and all at the same moments had had our attention drawn from the trunk to the main branches to the tiniest leafless twigs at the fringes of the tree. We were all quite floored, and overheard other concertgoers expressing the same amazement. As we were discussing this, a representative from the organizers of the concert came on stage and apologized. There had been a program misprint, and the order of the pieces as printed was not correct. The piece we had just listened to was not the program piece, but the one listed after it. NOW we would here the piece about the tree, which was very disappointingly non-evocative in comparison.
So there’s some ways to go in our knowledge of this, I’d say.