Who can teach me to sift hexagrams!

I don't want any reward, just tell you a little truth.

Use a sieve or sifted radish, fill it with flour or other powdery things that can leak out, and insert a clip under it to write. Write on the table with a virgin frame. Burn incense, knock on the head, "please God", and then tell God the problem, and the sieve will automatically write on the leaked powder.

It's called "Fu Luan".

I haven't tried.

This divination method is also called supporting dustpan.

Interpretation of basket support: a superstitious activity in which a stick is hung on a shelf, two people hold the shelf, and the stick draws words on the sand table as a sign from God.