The song uses the mythical sunken city of as a metaphor for a relationship that is beautiful but fundamentally "built on shaky ground".
It explores deep feelings of loss , nostalgia , and the realization that some connections are too fragile to survive the "real world". Seafret - Atlantis
The lyrics describe a situation where both people are trying to make things work, but the relationship is doomed to fail despite their efforts. The song uses the mythical sunken city of