"Uncurtained, my long room floats on darkness, moored in rain" was from Elaine Feinstein's short poem "Night Thoughts". Feinstein herself reads it here.
What is the long room she speaks of? Myself, I thought of coffins and ghosts who cannot linger in the trees but hang there for a moment, watching through the windows of the living. That's just me, though, following a rather gothic train of thought. "Night Thoughts" is one of those poems with enough texture to allow for a number of interpretations. They make for good discussions.
Now for the new line:
"If I could save time in a bottle."