Summer Stillness

The stars are golden instants in the deep
    Flawless expanse of night: the moon is set:
    The river sleeps, entranced, a smooth cool sleep
    Seeming so motionless that I forget
    The hollow booming bridges, where it slides,
    Dark with the sad looks that it bears along,
    Towards a sea whose unreturning tides
    Ravish the sighted ships and the sailors' song.