Yes, it means someone feels very sad suddenly.
The ant is a hard worker who knows that in order to have a comfortable and happy lifestyle, one must work to obtain it, instead of squander time with play.
The grasshopper is a character who only cared about playing and having fun, and so when the time came (winter) when he truly wanted to be inside and comfortable, there was no food and shelter to sustain him. He did not understand the greater value of working hard for comfort.
This is not true.
Framing increases focus on what you want the viewer to focus on.
