Long before xianxia 仙侠 became a publishing category, classical China had a thousand years of Taoist marvels: hermits who walked through walls, alchemists who paid for immortality in years off their own lives, swordsmen who flew their blades across a province on a single breath. The literature is older and quieter than its modern descendants. It rewards patience.
The early sources are unembarrassedly hagiographic — Ge Hong's Biographies of Divine Immortals (神仙传, fourth century), the Tang Gleanings of Immortal Lore (仙传拾遗) — written to record the lives of those who, the compilers believed, had succeeded. By the Song the Daoist canon (Yunji Qiqian 云笈七签) had absorbed and systematized the material; by the Ming and Qing, it had loosened into the entertaining miscellanies of Pu Songling, Ji Yun, and Yuan Mei, where Daoist masters appear as characters whose powers are real but whose patience is being tested.
What unites the tradition is its economic seriousness. Power has a price. Years of meditation, decades of failed elixirs, the abandonment of family — the texts rarely let the cost slide out of view. For Western readers, the most useful frame is not magic but apprenticeship: a long, often disappointing, sometimes transcendent training in what the Chinese tradition calls the Way (Dao 道). A reasonable first reading is a short master-and-disciple tale, where the student learns one small thing and recognizes how much remains. From there, the longer transformations — and the rarer accounts of those who paid the price and decided, in the end, that immortality was not what they wanted.
— Editor's note, Cathay Tales