This expression is used humorously to emphasize that something is definitely over, or that someone has gone and will not return......
The Memphis mansion (of this name) was Elvis Presley's home for 20 years, and the site of his death. In the Meditation Garden next to the mansion, are the burial places of Elvis, his parents, grandmother, grandson, and daughter.
There is an annual procession through the estate and past Elvis' grave, held on the anniversary of his death. Known as Elvis Week, it includes (among other events) the only Elvis Mass at St Paul's church - the highlight for Elvis fans of all faiths.
For many of the hundreds of thousands of people who visit Graceland each year, the visit takes on a quasi-religious perspective, celebrating the life of an extraordinary man, emphasizing his generosity, his kindness and good fellowship, how he was at once a poor boy who made good, an extraordinary musical talent, a sinner and substance abuser and a religious man devoted to the Gospel and its music. Long Live the King of Rock 'n Roll!
Graceland (USA) is surrounded by rolling pastures and a grove of oak trees....much the same as this area.