Original: If the outcome is favorable, the deceased is taken to Osiris, god of the afterlife, in Aaru, but the  demon Ammit (Eater of Hearts) part crocodile, part lion, and part hippopotamus destroys those hearts whom the verdict is against, leaving the owner to remain in Duat.
Simplified: If the outcome was good, the dead are taken to Osiris, god of the afterlife, in Aaru, but the if the out come was bad, the demon Ammit destroyed their heart, leaving the owner to remain in Duat.