Shangri-La is a fictional place described in the 1933
novel Lost Horizon by British author
James Hilton. Hilton describes Shangri-La as a mystical, harmonious valley, gently guided from a
lamasery, enclosed in the western end of the
Kunlun Mountains. Shangri-La has become synonymous with any earthly paradise, particularly a mythical Himalayan
utopia – a permanently happy land, isolated from the world. In the novel, the people who live at Shangri-La are almost immortal, living hundreds of years beyond the normal lifespan and only very slowly aging in appearance. The name also evokes the imagery of the
exoticism of the
Orient.
Used ironically here...