If a chimpanzee modifies a stick to use it to get insects out of a hole, we could say that the chimp’s technology was as natural as the chimp itself.
As humans are as natural as chimps, one might say that a thermonuclear bomb is as natural as the chimp’s stick given that this a human technology.
The formation of black holes is also a natural event, using this broad definition of ‘natural’.
When Vita uses the term ‘nature’ or ‘natural’ in the context of nature-based spirituality, it clearly isn’t seeking for people to see black holes and nuclear weapons as sacred.
Instead, the word nature is used to denote the natural processes that take place within Earth’s biosphere, and those factors that influence the biosphere, such as the Sun, Moon and tectonic processes.