The original event according to history appears to be Incan slaves sent to meet incoming pilgrims from Europe in the northern east coast of the Americas. They helped the newcomers with shelter and food. They ate together in the same spaces, possibly at the same tables.
All these centuries later… it is about family and friends gathering at homes and dinner places. Some get along well, some don’t. I’m wishing for peace today in the United States of America. A day to avoid conflicts and conflagrations. Just a “day of caring for each other”. Share your places, your food, your stories even clothing if lacking. A day without hate and contempt. It’s not a religious holiday, though it appears religiously enjoyed annually here!