There is nothing like the holidays to have our feelings of nostalgia come out. It's the time when all of our memories, music, and traditions are practiced once again.
In fact, it's been found that people become more nostalgic during the holidays months, and it has a lot to do with a sense of belongingness.
Certain traditions connect us back to our childhood and to our families. Nostalgia is both a thought process, as well as a an emotion. It's considered a blended emotion.
When you're nostalgic, you might be happy too, or feeling something rather bittersweet. Something has triggered you to long for what you once had.
So enjoy this time period. Allow yourself to get swept away by the memories.