"Empty Spaces" lyrics - PINK FLOYD

"Empty Spaces"

[Spoken backwards:] Congratulations, You have just discovered the secret message. Please send your answer to 'Old Pink', Care of the funny farm, Chalfont...
[Interruption] Roger, Caroline's on the phone...

What shall we use to fill the empty
Spaces where we used to talk
How shall I fill the final places
How should I complete the wall