No matter how many times they die or are reborn, they are "condemned" or "destined" to gravitate back toward each other.
The lyrics suggest the protagonists have met and loved each other in 500 different lives. Each time, they find one another regardless of the era or circumstances. Amaral - 500 Vidas (Lyric Video)
There is a heavy focus on the universe and the physical sensation of being "home" when the other person is near. No matter how many times they die or