Traditional Culture Encyclopedia - Weather inquiry - What is the explanation of the weather sign?

What is the explanation of the weather sign?

It is easy to see the change of the weather.

Ontology: cloud; Vehicle: signboard. Similarities: Both of them have indication function. But the signboard is more obvious, close to life and easy to understand. Therefore, the signboard is used as a metaphor, which is vivid. The word "signboard" is used figuratively here.

function

(1) Metaphorical reasoning is easy to understand and accept.

(2) Metaphor can tell some unimaginable things in detail and explain them with other similar things, which makes people more clear.

(3) Metaphor can be visualized and leave a deep impression on people.

(4) Play the role of decorating articles.

(5) Make things more vivid, highlight features, render the atmosphere and set off the side. ?