I have seen this on several of the vintage cards I've recently found, but it's a really nice poem I hadn't seen before. It says,
Whatever else is lost
among the years
Let us keep Christmas ...
its meaning never ends.
Whatever doubts
assail us
or what fears
Let us hold close
this day
Remembering friends.
I wish I knew who the author was. Our world is so upside down, a lot of people are trying to find their way. As Christians, we need to "keep Christmas" so that the world will understand the precious gift we are celebrating.