羽化

1. • levitation (of Daoist immortal)
2. • to become as light as a feather and ascend to heaven
3. • to become immortal

     in Daoism

4. • to die
5. • of winged insects, to emerge from the cocoon in adult form
6. • eclosion

Character by character

• 羽(yǔ)feather
• 化(huà)(of a monk or Daoist) to die