From the perspective of Lu Ming, who grew up in a poor family, all fantasies are futile. If you are not down-to-earth, you will not be able to accomplish anything, no matter how big or as small as dust.
Lu Quan is the complete opposite. She thinks fantasy is good sometimes and thinks this is the way normal people think. But it's always bad to be immersed in it.
The two sisters are moving towards their ideal goals, and everything seems to be perfect. However, the price of perfection must have shortcomings. The nightmare still cannot be erased, like a disgusting snot stuck to the nasal cavity, which is extremely uncomfortable.
Intention: to break out of the cocoon.