It is not cultures that meet, but people

 ‘Guests’ become ‘neighbours’, enriching our everyday practices and ideas with values which become part of the shared and constantly […] developing tradition.

This is how it has always been and always will be. If it were different, we would never have converted to Christianity, we would still have the feudal system and, for example, we would have to ban Christmas trees because it is a custom which was brought to us from Southern Germany and became popular only at the turn of the 19th and the 20th century.

M. Buchowski, J. Schmidt (red.), Migracje a heterogeniczność kulturowa. Na podstawie badań antropologicznych w Poznaniu, Poznań 2012, s. 17-18.