Apparently, the way time travel works on Lost is movement of consciousness through time and space to experience “retrocognition of the past and occasions of precognition of the future.” The breathtaking occult art of Paul Laffoley has dealt with this subject for years, most notably in his painting The Time Machine : GEOCHRONMECHANE : From The Earth – the plans to build a working time machine. More info can be found on Paul Laffoley here. He can also be heard explaining his time travel plans in his lecture at Esozone 2007.
I’m also reminded of the occult action comic The Invisibles, which I reviewed here. Characters in the Invisibles use a consciousness projection technique to travel through space and time. The source for the time travel techniques of the Invisibles is the book The Voudon Gnostic Workbook, a collection of materials Michael Bertiaux used to instruct his cult in Chicago.
However, Michael Szul of Key 64 points out that the Invisibles can travel to places in time that they haven’t been and don’t need a “host body.” He suggests that the time travel in this episode is more reminiscent of Slaughterhouse Five. Lostpedia has this to say on the subject:
Desmond, during one of his flashbacks/time travels, speaks to someone else in the military with him. His friend’s name is Billy. Billy Pilgrim is the main character in Slaughterhouse Five. The narration of the story of Billy Pilgrim begins: “Listen. Billy Pilgrim has become unstuck in time.” When Desmond is with Daniel in 1996 and Daniel is about to experiment on Eloise, he says that he is going to unstick her in time. Also, the narrator of Slaughterhouse Five, Vonnegut, says that he likes to call old girlfriends late at night. Desmond calls Penelope at night. When Desmond spoke with Mrs. Hawking, she said that events are structured and that the universe will course correct. In Slaughterhouse Five, Billy Pilgrim explains that , according to the Tralfamadorians, aliens who can see the fourth dimension, time is structured and events cannot be changed (we are like bugs in amber). When asked about the end of the universe, the Tralfamadorians explain that one of their test pilots presses a button that destroys the universe. Billy asks why they cannot stop the pilot from pressing the button, and they reply that the pilot always has and always will press the button. The moment is structured that way. Desmond’s purpose, according to Mrs. Hawking, is to turn the key and he cannot avoid it. The moment is structured that way. Billy Pilgrim sees the future, and even predicts his own death. Desmond predicted Charlie’s death and other events on the island.