Its about Sithis again, and the night, and the stars. Sithis is the nothingness. Its also stated that Sithis is the night. So Sithis is the outer space.
But what about the stars in the outer space?
As you can learn from the Book "Magic from the sky", the stars contain some power that can be converted to magicka. I don't really know much in Lore about magicka, but in general magicka gives people the power to control and alterate the nature. How can that be?
So what I thought about: Maybe these stars are the souls of the people whose bodies died. The souls are send to Sithis, to the void. Maybe the stars represent them. This would also explain why magicka is so strong to be able to alterate the nature: It is the energy of thousands upon thousands of souls.
Another aspect that made me give this theory a serious consideration is that Varla Stones are able to recharge weapons. Enchanted weapons are weapons filled with the energy of a soul. A Varla Stone contains the energy of very many souls and so can be used to recharge very many weapons. The only other option to recharge weapons is a soul gem, which is also just energy of a soul.
All in all, Magicka would just be soul energy, as it is in enchanted weapons too as we know.
I know its odd, but I thought it would be worth a thought especially because I plan on roleplaying a Sithis Worshipper in the future. I just want to know if this could be possible.