[3] The singer said that she had known about the project for some period of time as she is very interested in film in general, and that she was approached by Cameron to record Avatar's official theme song.
"[3] One of the reasons Lewis gave as to why she accepted the proposal was that a lot of her second studio album, Echo (2009), was inspired by various films, and she thought it would be a great opportunity to appear on a soundtrack.
[4] It was composed in the key of A♯ minor using common time and a slow groove at 72 beats per minute,[5] with a melody based on the main Na'vi leitmotif from the film's score.
[5] Ben Child for The Guardian likened the lyrics "I offer my life as a sacrifice and live through your love" to those performed by Dion in "My Heart Will Go On".
Brian Linder for IGN praised Horner for asking Lewis to perform "I See You", describing her as a "vocal powerhouse," but was unsure if the song would manage to achieve the same success as Dion's "My Heart Will Go On".
[2] J. Hoberman for The Village Voice wrote that the closing credits features Lewis as a "Celine Dion clone singing in Na'vi.
[6][10] Nava stated that it was important to him to create a world for Lewis to perform in for the video, which he described as "sexy and modern" but also complementary to the film.
[6] The inspiration for the ultra-violet forest and the light piercing through the canopies of the trees in the video came from the film itself, which were re-created in a controlled studio environment.