Plz guys i really need you for 15 points who can tell me the main idea of this paragraph! "they turned off their flashlights and approached in silence; fireflies dislike noise and light. but even at the edge of the river there were no fireflies. perhaps they aren’t out tonight, someone whispered. no, there are plenty of them—come over here. down into the grasses on the bank, and there, in that delicate moment before the last light goes, were fireflies, gliding out over the water in low arcs like the sweep of the grasses . . and on down the river, and on and on, were fireflies, lines of them wavering out from this bank and the other and back again . . sketching their uncertain lines of light down close to the surface of the water, hidden from outside by the grasses. . in that last moment of light, with the darkness creeping up from the water and the moving plumes of grass still faintly outlined, there, far, far, far as the river stretched, an infinite number of little lines in two long lines on either side, quiet, unearthly. sachiko could see it all even now, here inside with her eyes closed. . surely it was the impressive moment of the evening, the moment that made the firefly hunt worth while. . a firefly hunt has indeed none of the radiance of a cherry blossom party. dark, dreamy, rather . . might one say? perhaps something of the child’s world, the world of the fairy story in it . . something not to be painted but to be set to music, the mood of it taken up on a piano or a koto. . and while she lay with her eyes closed, the fireflies, out there along the river, all through the night, were flashing on and off, silent, numberless. sachiko felt a wild, romantic surge, as though she were joining them there, soaring and dipping along the surface of the water, cutting her own uncertain line of light. "