I learned with my own personal experience, that we only know better our own culture, education, bias, and our own self, when we have lived at least few years in a different country and different culture (especially amongst locals). These (many years living in different countries and cultures) have expanded my horizon and my own identity, both professionally and especially personally. There is an emotional cost of "expatriating" oneself, but it is also truly a gift. There are many things that we cannot fully comprehend with only short visit, books or else, they have to be experienced over and over.