Whether it is a white towel or a white cloth, according to the old man, it is auspicious! You can keep it. This kind of cloth is called Lisbon. There is nothing unlucky. This is a "good thing" that their family gave to their friends on behalf of their old friends. A place is a local custom. We always give a small piece of white cloth here, whether it is a towel or a white cloth, you can keep it for yourself or give it to others, and it doesn't matter if you throw it away. It depends on how you handle it. Actually, everything is ok. As for why people want to take it back, because they think it is unlucky to hold a funeral in someone else's house, they wash their hands and wipe their faces with soap and towels when they get back! This is just a custom. Towels and soaps are the most common daily necessities, so I handed them down. After all, they are practical.