Huáng quán
the Yellow Springs
the underworld of Chinese mythology
the equivalent of Hades or Hell
mìng fù Huáng quán
to visit the Yellow Springs
to die
mìng guī Huáng quán
lit. to return to the Yellow Springs 黃泉|黄泉[Huang2 quan2] (idiom)
fig. to die
to meet one's end