Yan Shu carved the "Picture of Cultivation" in the Dunhuang Grottoes (a metaphor for the Mogao Grottoes), and transformed himself into the "real person" described in "Zhuangzi":
> The body that "does not get wet when entering water, does not get hot when entering fire" is integrated into the aura of "ancient heaven" described in the "Huangdi Neijing",
>Final enlightenment: **Cultivating the truth through falsehood is not for immortality, but to enable all living beings to understand the way of "being cautious in the end as in the beginning"**
> ——Echoes the ultimate realm of "He who dies but does not die will live longer" in the Tao Te Ching
