I remember how, that night, I lay awake in the wagon-lit in a tender, delicious ecstasy of excitement, my burning cheek pressed against the impeccable linen of the pillow and the pounding of my heart mimicking that of the great pistons ceaselessly thrusting the train that bore me through the night, away from Paris, away from girlhood, away from the white, enclosed quietude of my mother's apartment, into the unguessable country of marriage.