At least 90% of the ancestors we worship now have been reincarnated, but we are still setting up memorial tablets, visiting graves in Tomb-Sweeping Day and even repairing ancestral graves hundreds of years ago ... In fact, these are just expressions of our ancestors' nostalgia. Personally, I think it's useless to burn paper money ... because if our ancestors were good, they didn't need it, if they were evil, they wouldn't be used ... so wherever you are, you have to burn it. If you burn incense, your ancestors in heaven can receive it, because heaven and people don't eat like us, but breathe in ... so if you eat something worshipped by God, its taste will be less than that without worship. Of course, it's not easy to detect ... so whether you can receive what we worship depends on where this ancestor incarnates.