羽化登仙 transform and ascend to immortality
Explanation
羽化登仙是指人死后变成神仙升天，也比喻超凡脱俗。
羽化登仙 refers to a person who dies and becomes a god ascending to heaven; it can also be used metaphorically to describe something extraordinary and otherworldly.
Origin Story
传说中的神仙，大多都会经历一个“羽化登仙”的过程。从前，有一个叫张三的书生，他勤奋好学，一心向道。一日，他在深山里采药，偶然间发现了一处隐秘的洞穴。洞穴里，灵气充沛，祥云缭绕。张三走进洞穴，开始修炼。他日夜苦修，不畏艰辛，终于在百年后，功德圆满。这一天，天空中出现了五彩祥云，张三沐浴在祥云之中，身体渐渐变得轻盈，最终化为一道金光，飞升而去，羽化登仙。从此，他成为了一位受人敬仰的神仙，守护着一方百姓。
The gods in legends mostly experience a process of "transcendence and ascension into immortality". Once upon a time, there was a scholar named Zhang San who was diligent and studious, wholeheartedly pursuing the Dao. One day, while collecting herbs in the deep mountains, he accidentally discovered a hidden cave. Inside the cave, the spiritual energy was abundant, and auspicious clouds swirled. Zhang San entered the cave and began cultivating. He practiced day and night, unyielding to hardship, and finally, after a hundred years, his merits were fulfilled. On this day, colorful auspicious clouds appeared in the sky, Zhang San bathed in the auspicious clouds, his body gradually became light, and finally transformed into a beam of golden light, ascending and transcending into immortality. From then on, he became a revered god, protecting the people of his region.
Usage
常用作谓语、定语；用于书面语，多形容人去世，也比喻超脱尘俗。
Often used as a predicate or attributive; used in written language, often to describe the death of a person, but can also metaphorically describe transcending the mundane.
Examples
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李白诗仙之名，实乃羽化登仙之境也。
Lǐ Bái shīxiān zhī míng, shí nǎi yǔ huà dēng xiān zhī jìng yě.
Li Bai's reputation as a poet god is truly a state of transcendence and ascension into immortality.
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修炼有成，羽化登仙，从此逍遥自在。
xiūliàn yǒu chéng, yǔ huà dēng xiān, cóng cǐ xiāoyáo zìzài
Through cultivation, achieving ascension and immortality, from now on free and carefree