It's the drug that keeps on drugging!.
For a variety of reasons this particular mushroom doesn't produce much of an effect if raised in America. At the same time it seems to do pretty well in modern day Fenno Scandia and in mountainous areas.
Red and Green are the colors for the Japanese Good Luck Cat ~ that's the ancient god of Good Luck ~ Ho Tai manifest as a cat. dressed up like a Shinto priest. Red and White are the colors selected for the head-dress on the head of the Sphinx. It looks like a mushroom from the rear.
Regarding the precise beliefs of the Lapplanders, they were essentially eradicated during the period of Christianization, but fortunately many Sa'ami escaped to America before all the old knowledge was gone.
At the same time ethnologists presume the Sa'ami beliefs pretty well reflect those of the other Polar Peoples with whom they had contact to the East ~ what you dug up regarding traditionalists in East Asia is simply an example of a fairly intact culture where the old ways are remembered. That does not mean those ideas originate in that are, or that they were isolated to that area. You find fairly similar beliefs among the Yakuts and the Ainu (two genetically distinct ethnic groups in East Asia), and the Yakuts (also known as the Sakha) are ancestral to the Eskimo as well as the group that conquered Korea and Japan in the 6th century AD. The Ainu, although closely related to the earlier Jomon population in Japan (known in the Middle Ages as the Emishi), follow a bear cult, but the Emishi followed a badger cult. Most other Siberian and North Asian people had their own animal cults, with some focused on Polar bears, Brown bears, Black Bears, Reindeer, Muskox and so on. Just depends on where you were what kind of cult they had ~ which is entirely similar to American Indian tribes living in the Northern regions of North America.
It must also be noted that ALL the Polar Peoples, irrespective of their "race", whether white, ainu, yakuts, eskimo or indian, had at their disposal draft animals (reindeer, , sleds/sleighs, mucklucks, snowshoes, and in the FAR WEST the Sa'ami also had SKIs available. Archaeologists inform us that they invented the things. Plus, all of 'em had boats, there are rivers, lakes and all sorts of things. Cultural contact from East to West was not only possible in the Far North, it happened.