The Floss is a somewhat difficult symbol to track, as it also exists for realistic effect in the workings of the novel. On the symbolic level, the Floss is related most often to Maggie, and the river, with its depth and potential to flood, symbolizes Maggie's deeply running and unpredictable emotions. The river's path, nonexistent on maps, is also used to symbolize the unforseeable path of Maggie's destiny.
St. Ogg, the legendary patron saint of the town, was a Floss ferryman. One night a woman with a child asked to be taken across the river, but the winds were high and no other boaters would take her. Only Ogg felt pity for her in her need and took her. When they reached the other side, her rags turned into robes, and she revealed herself to be the Blessed Virgin. The Virgin pronounced Ogg's boat safe to all who rode in it, and she sat always in the prow. The parable of Ogg rewards the human feeling of pity or sympathy. Maggie has a dream during her night on the boat with Stephen, wherein Tom and Lucy row past them, and Tom is St. Ogg, while Lucy is the Virgin. The dream makes explicit Maggie's fear of having neglected to sympathize with those whom she hurts during her night with Stephen (and also, perhaps, her fear that they will not sympathize with her in the future). But it is Maggie, finally, who stands for St. Ogg, as she rows down river thinking only of Tom's safety during the flood in a feat of "almost miraculous, divinely-protected effort."
Eliot depicts Maggie's eyes as her most striking feature. All men (including Philip, Bob Jakin, and Stephen) notice her eyes first and become entranced. Maggie's eyes are a symbol of the power of emotion she contains—the depth of feeling and hunger for love that make her a tragic character. This unique force of character seems to give her power over others, for better or for worse. In Book First, Maggie is associated with Medusa, the monster who turns men to stone by looking at them. Maggie's eyes compel people, and different characters' reactions to them often reflect the character's relationship with Maggie. Thus, Philip, who will become Maggie's teacher, in a sense, and first love, notices that her eyes "were full of unsatisfied intelligence, and unsatisfied, beseeching affection." Bob Jakin, who views Maggie as superior to him and a figure of whom to be in awe, reports that Maggie has "such uncommon eyes, they looked somehow as they made him feel nohow." Finally, Stephen, who will exploit the inner struggle that Maggie has felt for the entire novel, notices that Maggie's eyes are "full of delicious opposites."