Unwrapping the Ralph Lauren Christmas trend

The end of the year is filled with decoration and celebration, from Halloween through Christmas there is a constant thread of decor. However this year, many are tying to capture what is being called a "Ralph Lauren Christmas". A mix of classic Americana and traditional patterns, fabrics, and materials. But, what exactly is a Ralph Lauren Christmas? Where did it come from? And why are so many people trying to decorate following this viral trend?