The unbearable lightness of being

Just going over some books that I'd like to read, got my hands on this pithily put analysis of the philosophical underpinnings of the book The Unbearable Lightness of Being(http://en.wikipedia.org/wiki/The_Unbearable_Lightness_of_Being) :

The German expression, Einmal ist keinmal (once is nothing) encapsulates “lightness,” the concept of which is well expressed in the quote: “what happens but once, might as well not have happened at all. If we have only one life to live, we might as well not have lived at all.” Following this logic, life is insignificant, and decisions do not matter, and are thus rendered light, because they do not cause personal suffering. Yet the insignificance of decisions — our being — causes us great suffering, perceived as the unbearable lightness of being consequent to one’s awareness of life occurring once and never again; thus no one person’s actions are universally significant. This insignificance is existentially unbearable when it is considered that people want their lives to have transcendent meaning.

Can't get myself to stop and marvel and the immense wisdom and "heaviness" that the lines above carry. A beautifully poignant point of view of life.