A Foreigner In His Own Country?

A reader writes:

Is it possible for a citizen to become a foreigner in his own country? Sadly yes, it is possible. If you have spent 30 years or more, away from your homeland, it will be difficult to adapt to your original country once you return home. Everything will appear to be new and strange to you. During your first year, chances are that you will want to return to wherever you have been spending all these years.