The Unbearable Lightness of Being is not everyone's read. For one, there is so much to follow on this book that the true nature of it is the topic that covers about love, infidelity, sexuality, obsession and lust. Its about two men, two women and a dog and how their lives are intertwine from one another based on Friedrich Nietzsche's concept of eternal recurrence.
I do enjoy reading it as it is funny, enlightening and enjoyable in my own account. I do understand its philosophical approach about love and sex and communism, where one felt some lightness of what Tomas desires and the weight burden of what Tereza felt when she was with him. Freedom is the main exploration of what adults do to each of their own. Where else love is a burden when it comes to relationships (that's how Tomas views it), in many interpretations it views differently for other characters.
For me, its a book I am not sure who to recommend. I can say this book gives me a different view how things happen for a reason, and we have only one life to choose from and no other better decisions will make it better as there is no point in comparing any thing. In my own personal opinion, I do find this one of the better reads in modern literature.