97 Some peripheries are close to us, in city centres or within our families. Hence there is an aspect of universal openness in love that is existential rather than geographical. It has to do with our daily efforts to expand our circle of friends, to reach those who, even though they are close to me, I do not naturally consider a part of my circle of interests. Every brother or sister in need, when abandoned or ignored by the society in which I live, becomes an existential foreigner, even though born in the same country. They may be citizens with full rights, yet they are treated like foreigners in their own country. Racism is a virus that quickly mutates and, instead of disappearing, goes into hiding, and lurks in waiting.
Source: Fratelli Tutti (Vatican.va)