Successful integration is closely related to an individual's culture, which depends on religion. Cultures have greater chances to match when they present same living styles. In some cases, however, these may fundamentally differ, and cause the task of integration of a given individual very difficult, if not impossible.

Families of immigrants, who bring up new generations as strangers to the nation in which they live should pay a visit to their respective countries. A journey to the roots of a culture, sometimes venerated, helps understand why immigration was necessary in the first place. Or why it may nolonger. Foreign nationals who temporarily return to their country of origin sometimes feel a sense of gratitude to reside in a country which provides them with new opportunities and an overall higher quality of life. Morally speaking, however, financial considerations are far less meaningful than a real desire to be part of a culture or extended culture.

For these reasons, citizenship should never be granted before a sincere desire to integrate was evidenced. While cultural differences are welcomed, as laws protect individuals' freedom of expression and religious practice, an extensive use of the same does not imply integration, rather rejection of a given environment. Morally speaking, foreign nationals should always bear in mind that the exercise of freedom must me compensated with a sense of gratitude for those who've made it possible.