There's the concept of "nature" vs "man made", definitely, but when it comes to the existence of something I am afraid I must also claim the cellphone is part of nature in that it is part of the physical world.
I am uncertain how this applies to mathematics being part of nature. As opposed to being "invented" by humans?
Great Reset told about in the Bible? Sounds like "end times" talkin'. If that's the case, then yeah, I know what you're talking about but the point is getting more and more obscure on how it all relates to the nature of mathematics.