The Somnambulist lyrics

Untie the gown, float to the ground
She revolve round, making no sound
Air leaving slow
Still breathing though

Decaying through brown, diving shes bound
Hours swum down, treasure unfound
Air leaving slow
Still breathing though

Somnambulist
Somnambulist
Somnambulist
Somnambulist
Air leaving slow
Still breathing though.

Submitted by Guest

What do you think is the meaning of The Somnambulist by Xtc?