To pray to the ancestors for good fortune.

[Hua Yuqing] I know the answer! It's to pray for good fortune!
[Granny Yun] Oh? Can you elaborate?
[Hua Yuqing] A-Yuan told me that the parade is when everyone's virtue is shared with the deities. Only good, kind people who have worked hard will receive the blessings of the ancestors!
[Granny Yun] That's right. If we manage to hold the parade successfully because of your help, the ancestors will also bless you.
[Granny Yun] If some people want to get close to the deity puppets on the streets during the parade, what should be done?