What do the lyrics Fa-la-la-la-la go to?

The lyrics "Fa-la-la-la-la" are commonly found in Christmas carols and are known as a refrain or a chorus. They are used to create a joyful and festive atmosphere in the music, often serving as a simple and catchy vocalization that adds to the overall holiday spirit of the song. The specific meaning of "Fa-la-la-la-la" is open to interpretation, but it is typically understood as a nonsensical or playful expression of merriment and celebration.