Sounds can have a metaphoric meaning, which creates an extra layer of signification. When one cannot see the causal source of a sound, it becomes an acousmatic sound (Schaeffer, Chion), which makes the sound ambiguous, i.e. it can adopt more than one meaning, depending on the context.
Evocative sound is another term used in this context. A sound, like a smell (the slightly musty smell of a staircase, combined with the smell of floor wax in an old apartment house reminds me always of my grandmother), can evoke memories and emotions. These evocative sounds are not eternal, but associated with certain historic time periods. The hammering of a locksmith in a village has all but vanished. The church bells are still universally recognised in the West as a symbol of Christianity and the Catholic church.
Some writers apply C.G. Jung’s concept of the archetype for certain sounds. Rain, wind, the sea sounds are examples of these eternal archetypal sounds (derived from C.G. Jung’s psychological theory of archetypes). According to Plato (Phaedrus, 360 BC) cicadae (grasshoppers) are the souls of people who had been inspired by the muses to always sing and forgot to eat or drink. Socrates says:
A lover of music like yourself ought surely to have heard the story of the grasshoppers, who are said to have been human beings in an age before the Muses. And when the Muses came and song appeared they were ravished with delight; and singing always, never thought of eating and drinking, until at last in their forgetfulness they died. And now they live again in the grasshoppers; and this is the return which the Muses make to them-they neither hunger, nor thirst, but from the hour of their birth are always singing, and never eating or drinking; and when they die they go and inform the Muses in heaven who honours them on earth… for these are the Muses who are chiefly concerned with heaven and thought, divine as well as human, and they have the sweetest utterance. For many reasons, then, we ought always to talk and not to sleep at mid-day.