The celestial and the subterranean world are divided into seven layers (the underworld sometimes nine layers and the celestial world 17 layers). Shamans can recognize entries to travel into these realms. In the multiples of these realms, there are beings, living just like humans on the earth. They also have their own respected souls and shamans and nature spirits. Sometimes these beings visit the earth, but are invisible to people. They manifest themselves only in a strange sizzling fire or a bark to the shaman.