How do you make fun holidays for the people in your worlds? I think I should flesh out the religion in my fantasy project and the way religion affect the lives of ordinary people. In my finished manuscript the divine creature which are worshiped by the majority of people don't have a major role in the plot, but I plan to give them a bigger role in the sequels. Maybe I should introduce the lore of one of the main deity as the god who is celebrated in the big winter festival. What do you think ?