@Lustig Andrei,
Humans are limited to a perception of reality they have taken to call "natural."
It's a very useful term but unless one believes humans have a complete perception of reality, the "natural" is perforce limited.
"Supernatural" and "Unnatural" are not two versions of the same concept.
Supernatural, very simply, means that which is beyond our perception.
Again, unless one believes nothing is beyond our perception there must be that which is
supernatural.
It's quite possible that the destiny of humanity is to render all of reality natural in the sense that it will some day in the far future be able to perceive the totality of existence. If this is the case, then at some point along the way we will almost certainly become
supernatural to other sentient beings following a similar path of discovery.
A typical difficulty with any discussion of the supernatural is the unfortunate tendency for so many to link the term with superstition, as has the originator of this thread.
This leads to superficial and usually supercilious arguments about believing in imaginary supermen.
If someone wishes to assume that they (or those with
greater minds than theirs whom they choose to rely upon for their beliefs) have full perception of reality who can stop them?
Likewise, who can stop someone from framing the supernatural in natural terms?
Why bother?
There is, I believe, a severly mistaken notion that ridding mankind of any contemplation of the supernatural will somehow lead to an elimination of the worst excesses of organized religion.
Those excesses can attach as easily to a entirely natural based philosophy as any that claims to be based on the supernatural, and for people who crave power either will provide them with an effective vehicle.
The blind followers who they dupe are seldom so blind that they are incapable of distinquishing between right and wrong and therefore entitled to an exemption from personal moral accountability, and even if this were not the case, there is not that much difference between promises of a paradise in heaven or one on earth.
It doesn't much matter to the fantatical whether they are bound to follow, without question, the Word of God or The Great Leader.
As for miracles, as Arthur C Clarke famously wrote:
Any sufficiently advanced technology is indistinguishable from magic.