But of the creatures who dwelled within the forest, some were predators; these knew no boundaries of limits, coming and going as they chose. Chief among these were the albino tigers. So it was written by the gods that the phantom cats might not look upon the Celestial City; and so it was laid upon their eyes, through the nervous systems that lay behind them, that there was no City. Within their white-cat brains, the world was only the forest of Kaniburrha. They walked the streets of Heaven, and it was a jungle trail they trod. If the gods stroked their fur as they passed them by, it was as the wind laying hands upon them. Should they climb a broad stairway, it was a rocky slope they mounted. The buildings were cliffs and the statues were trees; the passers-by were invisible. Should one from the City enter the true forest, however, cat and god then dwelled upon the same plane of existence.

Roger Zelazny, "Lord of Light"