How do you understand Milan Kundera’s The Unbearable Lightness of Being?

Hello, a specific understanding is about Sabina's betrayal. She betrayed everything and escaped from everything. Her life became extremely "light", she had nothing, and her existence lost its acceptable meaning. , unbearable.

Initially, an ancient Greek philosopher proposed to define certain attributes of things as positive attributes, such as lightness and lightness, while the opposite, such as darkness and heavyness, were defined as negative attributes. The classification of "heavy" as "negative" has been around since then and has become a rule. Life is often heavy and sometimes unbearable, and Kundera told people that the "lightness" of life that has lost its weight "It's also overwhelming.

Too much of the intertwined weight of reality and spirit makes people breathless, and the "relaxation" of abandoning everything, betraying everything, and having nothing means that the existence of life loses its original weight (meaning). Likewise, It's overwhelming.

The translation I bought is titled "The Unbearable Lightness of Being". This narrative sequence may be helpful to you.

Also helpful for understanding this kind of philosophical thinking is Mr. Kundera's "Slow"