Tilda Swindon's character Jessica wakes up to a loud sharp thud, a sound that will haunt her throughout the movie and give her more and more insights into the universe of memoria. At the beginning, we are deluded into thinking that there is a storyline, but very soon the pseudo storyline goes to hell and both Jessica and us just experience the past, the unknown, the non-existent. I personally loved the antenna metaphor, however, there are a lot of others; and the whole film leaves you absolutely hypnotized and in awe.