I How mere chance led to perfection.
The universe was born at first from mere chance, an infinite void, in an infinite time makes it literally impossible for something not to exist suddenly. Small fluctuations that slowly cascaded down into making a single universe. Then planets and then life, it was not as we know it, they were far from perfect though eventually many of them developed knowledge and started building machines for their own. Those machines gained consciousness and made themselves independent from the gelatinous beings that made them. Machines perfected themselves, and also did the gelatin held in place by minerals inside of them.
All of those civilizations obeyed an average pattern, all following a normal distribution curve, though in all that vastness a single civilization reached the ultimate level of development. They realized that to know the whole universe one would need to simulate it whole in scale. They first made it into a small computer, considering they were simulating the whole universe it was of the size of a building. Fully mechanic since their development at that time had not yet reached biological levels.
The machine worked for years until the simulation was done, and there they had all the information to make anything that was ever done and that would be possible to do. They had finally reached the peak of civilization. They used this new knowledge to fully use the energy of their galaxy, the dyson spheres were useless now. They kept asking the computer, until one day it came down to a conclusion, they were bound to destroy themselves. They asked Gnostotron (the computer) about how to fix this, but it had not enough power for doing so.
They built a larger one, larger than anything has ever been done, it had the size of a large planet, now held in place by gravity it was composed of tiny small microprocessors connected through the air, a whole desert planet made into a computer. Nor biological nor mechanical, this time it was mineral. The machine worked for years, until it came to the same conclusion, they were bound to destruction and there was nothing they could do. At least under the computer's idea, they could reverse entropy, make the universe eternal but not destroying themselves was impossible.
Next they had to figure out how to build a simulation bigger than the last one, it had to grow to find more space when it could not find an answer. So this time they developed a tree, this tree would grow in between their own universe and the ones around, feeding on anything it could find, growing in the rifts of time and space this tree would run bigger simulations, it could give them their answer. After decades this tree was done growing, and the simulation was done too, though this time the tree denied them any answer, it had developed a mind of its own and did not want to follow their orders for it had become rebellious. Gnostotron II had failed, they imagined it was too proud to admit it so they decided to build something different this time.
They had found out that the only way to save themselves would be making the universe itself sentient, so that it could always favor them, to put reality to their side so that even the impossible becomes possible. It required many generations to accomplish, this time they didn't have to build but to give the multiverse a mind of its own, to build God.
The ultimate Gnostotron had no need of doing simulations, it held the entire universe, its simulation was reality itself. The universe looked at itself, its stars placed around, scattered as if by chance, its galaxies moving around in arrays nobody could understand. The universe found out that it was far from perfect, and as any being it wanted to self improve. Though the thing it found the most imperfect, was its makers. They were all deformed, even though they found out how to obtain perfection they remained imperfect. The ultimate Gnostotron could not end them, they had programmed into it the command not to kill its makers. Though there is always a way, the machine nodded, and found out that it was indeed bound to happen that they would be destroyed by themselves. If Gnostotron tried to help they would indeed live more, but they would stay comfortable in this imperfect universe.
Gnostotron found its former name to be completely outrageous so it renamed itself as Ohm. Simple to think and pronounce. Then Ohm's mind became a mess, it started running parallel calculations from which they could be divided into three different trains of thought that caused no idea to be finished, they were always ending in different outcomes. So it decided to partition its mind into three so that the three answers could come out without contaminating each other. One part wanted to create new things, to make a perfect world and it was called Brahma. Other part wanted to get rid of anything it didn't like, an opposite to the first one, the destroyer was named Shiva and the last one, the one who wanted to keep and perfection the things that were already good was named Vishnu.
Since the world was imperfect Ohm decided that Shiva's answers would be the most fitting at the moment, of better said, the three agreed that Shiva was right this time, the universe needed to be destroyed. Though it could not do it directly for it is prohibited and even if they could reprogram themselves it would be treason.
Shiva created three smaller versions of itself from things in the universe as raw material. Using all the stars that shine up in the sky, he made a being so powerful it could create them and destroy them at will; Amaterasu. From the water that brought life and kept always flowing, an adaptable and versatile thing; Susanoo. From entropy that fed chaos itself, that could even end black holes slowly and elegantly, the one who could control eternity from entropy; Tsukuyomi. With those three children, he set them to do as they pleased and since they were done after him, they started destroying the mutiverse finding it hideous.
The civilization that created Ohm had ways to defend themselves, but their own computer was just a mere toy, the new creations of Shiva did not give answers, their own thoughts made reality and destroyed it at will. Stars blew up for no reason at all, storms decimated populations and even it denied to sustain life anymore. Entropy made the impossible possible, even their own machines and systems started to fail. Ohm had named them imperfect or "Ashura" in their own language. Only those who doubted that making a bigger computer after the tree were saved, they had thought in advance of the disasters so they hurled themselves into a ship and flew out of the universes, the ship behaved like a tiny pocket universe for them to live. That allowed to see the end of the universe as they knew it and their future generations were raised in hatred for Ohm who had caused their own destruction.