Nine nights is a special celebration that happens in some cultures to honor their ancestors who have passed away. It happens over the course of nine days and nights, and during this time people get together to remember their loved ones who are no longer with them. They might light candles, leave offerings of food or flowers, or tell stories about the people they loved who have passed away.
Some cultures believe that during these nine nights, the spirits of their ancestors return to visit the living. So by honoring them, they show respect and invite them to come back year after year. It's like throwing a big party for your family and friends who have passed away, except instead of eating cake and playing games, you might pray or meditate or simply enjoy the company of others.
Overall, the nine nights celebration is a way for people to connect with their heritage, honor their ancestors, and feel a sense of community and connection to others who have shared the same experiences.