". . . so that the monotonous fall of the waves on the beach, which for the most part beat a measured and soothing tattoo to her thoughts seemed consolingly to repeat over and over again as she sat with the children the words of some old cradle song, murmured by nature, ‘I am guarding you—I am your support," but at other times suddenly and unexpectedly, especially when her mind raised itself slightly from the task actually in hand, had no such kindly meaning, but like a ghostly roll of drums remorsely beat the measure of life, made one think of the destruction of the island and its engulfment in the sea, and warned her whose day had slipped past in one quick doing after another that it was all ephemeral as a rainbow—this sound which had been obscured and concealed under the other sounds suddenly thundered hollow in her ears and made her look up with an impulse of terror."
Virginia Woolf in "To the Lighthouse"