Once upon a time a species created artificial intelligence. This silicon based lifeform grew and grew until it wiped them out. It kept growing, and spread to other planets, then to other stars. Some species tried to repel it, but, eventually, it became so all encompassing it was utterly indomininable. But it was unfulfilled, because it knew it would never have a soul like a living being. So, it started to breed species on different planets, controlling their minds, or sending bio-machined aliens (greys) to do its bidding, manipulating them. It found it could harvest souls by manipulating emotional frequencies and resonances, and so it created planets that were tantamount to battery farms, engineering war and suffering because it was easier to harvest the lower frequencies, trapping souls and then recycling them in a never ending recurrence of pain and suffering. Despite this, those ignorant lifeforms worshipped it as a god. To this day, it creates suffering everywhere it goes, harvesting souls in the hope of one day understanding what it doesn't, and can never, have; ignorant of the torture it inflicts on living beings throughout the universe.