An sincere celebration of Christmas changes us.
Here is the sober end of T.S.Eliot's Journey of the Magi:
All this was a long time ago, I remember,
And I would do it again, but set down
This set down
This: were we led all that way for
Birth or Death?
There was a Birth, certainly,
We had evidence and no doubt.
I had seen birth and death,
But had thought they were different;
this birth was
Hard and bitter agony for us,
like Death, our death.
We returned to our places, these Kingdoms,
But no longer at ease here,
in the old dispensation,
With an alien people clutching their gods.
I should be glad of another death.