“Possession” is written from the viewpoint of a man obsessed with a woman, and was inspired by consistent fan letters to McLachlan some time before the writing of the song.
The most famous ones are from a computer programmer from Ottawa, Ontario named Uwe Vandrei, who sued McLachlan for using his words without crediting him.
[2] Of the two, the more famous is Uwe Vandrei, an Ottawa, Ontario native who sued McLachlan in 1994, alleging that his love letters to her had been the basis of "Possession".
[3] In an interview with Rolling Stone three years later, McLachlan said, "And this one person wasn't the only guy ... there were a lot of letters from other people saying the same kind of thing ...
The video for the US market released in 1994 features the original album version of the song being played by McLachlan and her band in a cathedral-style hall.