In my bedroom in Copenhagen the radiator was ticking all night in the winters. It was very confusing at first and very comforting at last.
I recorded the sound through a whole night before I moved out.
When I hear it again I am in that space immediately.

What is the voice of the space you’re in?
Turn off the light or close your eyes for a minute or two.
Anything?

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Perhaps the sound is not there all the time, you might have to provoke it a bit.
Like the squeak in the door or the floor.

If you have a sound recorder on your phone,
record the sound you found.
There might be several. Get them all.
Hold on to the recording, we’ll come back to it later.