《太平广记·卷八·神仙八》
一旦修道成功，升入九天仙界，那时寿命就和日月星辰一样，亿万年长存永在了。 
神道一成，升彼九天，寿同三光，何但亿千。 
Once one successfully cultivates and ascends to the heavens, their lifespans will be as long as the sun, the moon, and the stars, and they will live for billions of years.