In the Egyptian cosmology, the Annunnukai weigh your heart after death, and if it's heavier than a feather, they feed it to their monstrous hound.
This is TRUE! And it aligns perfectly with theories of reincarnation from the east, and heaven/hell from the west. In other words, if you don't want to me be melted back into raw soul material, again and again, by evil gray alien reptoids, then do good deeds, be selfless and meditate on the joys and sorrows of existence. Mwahahaha!