What should I do at home after burning things and drawing circles on the ground next to grandma's house?

Burning things and drawing circles is a folk custom, and there are local customs everywhere. In the north, on festivals like Tomb-Sweeping Day, we burn paper on graves, first draw a circle, then put the paper in and burn it, and still keep chanting. The circle here is for people who have passed away, for fear of being robbed by others. That's probably what you mean by burning things and drawing circles next door to grandma's house, but the time is wrong. That's someone else's fantasy. It has nothing to do with others. Don't have an idea.