They call it a common gesture of courtesy to inform people that your home would offer itself to those fleeing some kind of devastation (oppressive regimes, abuse, earthquakes, etc.). However, most people don’t end up in that kind of humanitarian role. What’s the closest you have come?
Hosted refugees.
When Russia’s full scale invasion of Ukraine started in late feb 2022 we (Swedes) watched in horror as the people walked for days to get to southern Poland where the towns quickly tried to set them up with tents and basic services, looking for ways they could then move on within the EU.
My wife took the decision that she wanted to help, in any way possible, and jumped in the car. She drove for 14 hours, slept in the car, picked up two families (mother/daughters) and brought them back here to Sweden. One of them we then housed in our guest house for a year before they decided that it was safe “enough” for them to move back to their home town.
We had the opportunity and possibility. Not everyone has, the important part is to act in any way you can.