Legend of padlock with lock

According to the old people in the local village, "good old mother" means witch. It is said that she can protect the health of children. On the first day of June, I confessed to my godmother, and a child with a padlock kowtowed to her, which was a gift from my godmother. Then the children's grandparents (usually grandmothers) put two copper coins tied with red ropes on the altar to show "locking". From now on, on the first day of the sixth lunar month, two copper coins are tied with red ropes and hung under the portrait of the kitchen god's grandmother or old mother until they are twelve years old.