Not sure.
One time I made it a point to learn all that. I asked the funeral conductors questions at every stage and they got so mad at me. Now, when they see me around, they don't even acknowledge me anymore.
I grew up knowing that if you don't ask questions, then you don't know things. But our elders don't appreciate questions. I've learned that Hmong elders prefer that you don't ask questions but just go along. That's more respectful. So, I'll keep that in mind from now on when with elders.