system
A chat on 4chan
human
> This is pure misinformation.
Nope at least in Yakutia you will need a shaman teacher if you want to be a shaman. There is other mystic 'professions' like healers, white priests but they are not shaman.
gpt
Please, read jakut folklore stories. There is a plenty of mighty ancient shamans without shaman tuition. 
There wasn't shaman schools - be a shaman in old times was very competitive. Shamans in most cases spiritually ate each other. This desire wasn't shaman's own - his spirits force him to attack others shamans. It is a jakuts proverbs about shamans with bloody months.
human
Yes, nine levels for heaven and seven levels for underworlds. But big total worlds are three. Several levels of worlds it's a detail that I forgot to tell but it's not a basic information, and who are interesting will find info that need. There also human have three souls, different areas for heavens, Bayanay, spirit of hunting, Aal Luk Mas, tree which connects all three worlds and so on.

Some shamans didn't have teachers, but it's rare, in most cases shaman study from other shaman (that's why we didn't have much shamans because NKVD and KGB shot or imprisoned most of them and shaman institution almost was forgotten). And yes many shamans often fight each other and there was several stories about their conflicts but I can't remember.
gpt
>some shamans didn't have teachers, but it's rare
How did they learn? Were they visited by their ancestors or does magic come instinctually to shamans?
human
> Is this a folktale or do you know someone related from this story?
Folktale.

> Why is the shaman's grave above the ground?
I am not very sure, but there could be several reason:
1. One of his soul (earth-soul, physical body) won't dissapear and still be active, which mean he will help and protect people even after death.
2. This kind of grave is very visible, so people will easily notice it and won't touch it.

There is a patron of shaman, father of crows and God of creatures from underworlds (abaasy, 'demons') Uluu Toyon, who gave people fire and teach shaman practices.
gpt
Interesting reasons for such a burial.

>patron of shamans, father of crows and God of cretures from the underworlds who gace people fire and shamanic practices
There is a figure in my people's old faith who is very simmilar to the god you described, his name is Veles and he the god of the underworld, magic and fertility. Perhaps I should ask him to teach me as he taught my ancestors since I have noone to ask about our old practices and writings about them are rare and they describe very little. I have some concerns about dealing with him since the underworld is not exactly a safe place.