In 1993, the carbonatite has extruded forming the white top of Oldoinyo Lengai and this white peak in the heart of the Maasailand is thought to represent the beard of the Maasai God, which is why the Maasai people call it the Mountain of God. David Maige, a senior warden at Tanzania Lake Manyara, told The Namibian this week that apart from contributing to the country’s tourism sector by drawing a lot of tourists, Oldoinyo Lengai is also a holy mountain for the Maasai people, just like Namibia’s Ovahimba people believe in their holy fire. He said the Maasai people use the mountain as a site to conduct rituals such as sacrifices and prayers. “There are many American and European scientists studying and monitoring the activity of the mountain,” said Maige. He said the mountain also offers wonderful view of Lake Natron. He said when the mountain erupts the Maasai people believe that their God is angry and they have to go to the mountain to placate him with prayers. Maige said the lower slopes of the mountain are used by the Maasai people for grazing cattle as the volcanic soil is very fertile for growing grass. Source.
Lots of anthropomorphism in that, just as there is in the early Hebrew stories.
Isaiah 30:27 See, the Name of the LORD comes from afar, with burning anger and dense clouds of smoke; his lips are full of wrath, and his tongue is a consuming fire.
PSA 18:8 There went up a smoke out of his nostrils, and fire out of his mouth devoured: coals were kindled by it.
More volcanic Bible verses here.