Sentence:  The message of the astronauts, however, was not primarily one of <WSD>Christmas cheer</WSD>, and had nothing to do with the "Prince of Peace" or the "spirit of the season." Instead, it consisted of a dramatic reading of the first ten verses of the Book of Genesis, the story of the creation of the world. 
Meaning of the word marked with <WSD> tags:  The joyful and generous attitude expected of people at Christmas.