She sat at the window of the train....The window frame trembled with the speed of the motion, the pane hung over empty darkness, and dots of light slashed across the glass as luminous streaks, once in a while...She sat listening to the music. It was a symphony of triumph. The notes flowed up...It was a sunburst of sound, breaking out of hiding and spreading open. It had the freedom of release and the tension of purpose. It swept space clean, and left nothing but the joy of an unobstructed effort. Only a faint echo within the sounds spoke of that from which the music had escaped, but spoke in laughing astonishment at the discovery that there was no ugliness or pain, and there never had had to be. It was the song of an immense deliverance. She thought: For just a few moments -- while this lasts -- it is all right to surrender completely -- to forget everything and just permit yourself to feel. She thought: Let go -- drop the controls -- this is it.