The Varlian Gate
The Imperium Solus was formerly of the Imperium Cognati before the current Emperor’s counsin Lucan seceded after being overlooked for ruling. Lucan died six years later and was succeeded by his nephew Barus whose descendants continue to rule to this day. Though small in comparison to Cognati they still hold sway over 20,000 worlds and billons of people.
Solus teaches that the universe is god and all things within are parts of the whole (pantheism) – that each person is divine in essence and actions taken are those that the universe wants of you. It explains good and evil with a dualism perception – for every bad action there is an equally good action – so balance in the universe is maintained. This view has led to a rather polarised society, as people understand that their actions however good or bad will sort of be cancelled out by the opposing force. So there are an absurd number of pariahs and paragons, with only about 40% of the population seeing the grey area as a place to be where a person can be both good an bad and know what actions can be done to equal the other. The paragons see that they must make up for the rest of the universe that does not hold their views which might explain why there are so many.