Out of the cage.

Rudi Anapolski, an important figure (person) in Soviet culture who led a comfortable life in Russia was tired of his country's policies. He succeeded with the help of friends to escape to America. But life there was not easy. Rudi had recurring nightmares about Russia. He couldn't find a job as good as the one he had in Russia and neither did his wife Nadia. They miss their country and they worry about their own child not having any attachment for Russia, yet they are happy, he is free.
In my point of view, It is very difficult to live far from one's own land and country. Rudi and his wife don't feel at home in America their regret and miss Russia where they had important jobs. They know that they can no longer go back home. But they're happy their child will be a free man.