Septimus looked.as if some horror had come almost to the surface and was about to burst into flames, terrified him" (21). Septimus experiences this as Clarissa is standing at the florist's window. Similarly, in the scene where the airplane is skywriting, we are again introduced to both of their psyches through their respective streams of consciousness. .
Literary techniques are constantly used to relate Clarissa and Septimus in the novel. Big Ben is a sound image of great symbolic importance linking the activities of the two. Throughout the day, it counts out the hours, marking the progress of Clarissa and Septimus: "It was precisely twelve o'clock, twelve by Big Ben.twelve o'clock struck as Clarissa Dalloway laid her green dress on her bed, and the Warren Smiths walked down Harley Street. Twelve was their hour of their appointment" (142). Towards the evening, the strikes of Big Ben mark the climax of their journeys. Clarissa's party is about to begin as Septimus engages into a nervous breakdown and eventually commits suicide. Woolf's use of water also proves to be symbolic. Water is something that cannot be contained, therefore it suggests irregularity. Despite that Clarissa is being seen as a realist by the others, she identifies herself strongly with different images of water, and these indicate the irrationality in her characters. Standing on the street, Clarissa suddenly feels "herself being out, out, far out to the sea"(11). Sea appears as a dangerous element and the individuals are likely to be carried away by it. These irrational thoughts interplay with her physical illness, pulling her closer to the insane double of her, Septimus. He pictures himself as "a drowned sailor on a rock" (103-104) when his sense of alienation and indifference becomes all but intolerable. Before committing suicide, he allows his madness to pour like water on him by imagining "the sound of water was in the room.