Why put cinnamon in hot red wine?

Cooking wine is a way of drinking red wine for Christmas, which originated in the west. When cooking red wine, many spices such as star anise and cinnamon are added ... This way stems from Europeans' "persistence" in spices, because spices are rare in European history (they are not produced in European history), and they have to go through thousands of dangers from the Far East to Europe, so they are very expensive. Historically, Europeans regarded spices as "luxury goods".