What is the meaning of ?

a sage or hermit, an enlightened person, usually immortal and ageless

short for 仙人 (sennin): a wizard or mage; an immortal living as a hermit in the mountains

by extension, the region or area where a sennin lives

the supernatural techniques for becoming immortal and ageless

a person of exceptional talent

xian, Immortal

fairy

celestial

Source: wiktionary.org