Advaita Vedanta says that the primary Cause and secondary cause are ONE, and the common cause is just replication of that One. It signifies the paganistic nature of Vedism, that is Nature is the god, natural universal laws are the realms of god.
Real is that which exists, Unreal is that which doesn’t exist an cannot exist.
Natural is that which is real and hence which exist or can occur, Unnatural is that which is unreal and hence which cannot exist.
The idea of supernatural is totally discarded by Taitreya and Advaita vedanta both.
By the way, you mentioned various names of god, so I should mention that Vedic concepts like Samkhya, Mimaamsa, Nyaya, and so on are completely Atheistic and denies any existence of God, while vedic schools of Dvaita, Advaita and Taitreya Vedanta asserts the monotheistic system, (with a difference that Advaita Vedanta asserts that All is one and is Nature, Dvaita Vedanta asserting that Nature and Ishwar (urja, shakti, omkar, energy) are different, and are existing since ever for ever, while Taitreya vedanta asserting that Energy, Matter and life are all different).
None of the three major schools of Vedic philosophy supports the idea of Unnatural, some schools, accepts the idea of supernatural as being God, which cannot act against nature in any circumstance) while some schools asserts that there is nothing like supernatural and all that is, is nature).
From the roots of Samkhya, Mimaamsa, Nyaya and Charak, the branches of Vedism like jainism and budhism sprouts and fruitifies.

Crime and criminals, both are natural, but none is rational.
Moral and immoral both are natural, but immoral is irrational. Whatever is irrational in human perspective, is immoral and hence it should be illegal. That is the rational and pretty natural basis of a sound legal system.
Laws should not be designed on mystical ideas of “Unnatural”.
laws can be designed only on rational premises.

What is nature…if one may ask; the first thought that hits the mind is a some serene green beauty with little or no human presence. It’s actually sad that human consciousness have been doctored over the time to assume himself and his actions itself as unnatural. Well all that it really does show is certain domination of a brooding lamenting self pity psyche of humanity. One that continuously held up its ante against the coercion of human will to change the so called nature and the world around him as per his desires. This psyche in fact holds the human intellect itself as unnatural, the forbidden fruit that man was not meant to have.

Nature as I see is nothing beyond a set of law. These laws are nothing but the one that sets the platform for action human or divine all play by the same rules. Nothing really spills beyond the course of nature. Unnatural death is one such misnomer that we all hear in our day to day life. We assume that ageing and dying is the only natural course of life, it is perhaps because we are too frigid to accept the blatant realities of life. Our consciousness perhaps is too naive to accept that it is natural for it to cease all of the sudden without any warning or reason.

We apply almost a similar logic to all our thought process. A whole set of right and wrongs passed on from generation to generation with no rational inquiry as to why. One may ask, isn’t crime also then natural? A mentality to murder and plunder someone comes naturally to certain individuals. Well the answer is yes… It is so and that is perhaps the reason that after centuries of persecution at the hand of society we still encounter such people. It is indeed a natural offshoot of human cognitive variations…however undesired they may be. I don’t hold society wrong in persecuting them, there are not very many options available to really check this such behavioural patterns or stopping them from recurring In fact these days we see humanity more often wronged on the name of ‘right’.On the name of religion, caste and creed and so many such which were created on the first place to safeguard the so called right.

The idea is not to justify the present state of human affair, but to delineate the element of stigma that is attached to the natural course of humanity. And also to counter the so called judgement day and dooms day prophesies. Death is a natural end to man and it would be to his race and all his creations. If man were to be ever judged it would be no god that would do so but man himself

will come back 4 more..