It was an herb that grants immortality, also bringing the dead back to life, which is guarded by The Old Man of the South Pole, in the forbidden hills of the Kun Lun mountains.
She destined to the mountains, hovering on a cloud, then carried on foot, passing gateways and arches...
Until she reached an entrance that stated, "Beyond mortals" above a bridge, though on the other side, there were two disciples of the old man guarding the herb.