What is the theme in Strangers from a Different Shore: A History of Asian Americans by Ronald Takaki?

Wanting of a better life is a theme to consider. Many immigrants came to Hawaii and the United States in search of a better life. Some came to escape harsh political regimes, such as the reason for the Japanese colonialism in Hawaii. Most came on labor contracts that paid their passage and specified the terms of their employment. They left their families behind thinking they would work for several years, save money and then return to their home country where they would lead a good life.