Please, don't flow so fast

She was lying on the bed when she shut her eyes and felt the bed was swinging. As she felt this, senses became stronger, they were deepen; guided by some weird sounds. The bed kept on swinging until the feeling turned into the sensation of going down in the sea, some sort of reef, the bed sinking with the movement of a feather that's no longer on wind's hands, but gravity's. Before it hit the bottom, she opened her eyes and picked out a tiny luminous fish making shapes in the water. Just as soon as it noticed it was being watched, it swam as fast as it could and left a glowing line after it. She got off the bed and chased it. It could flow really fast and apparently didn't want to be seen. As she swam the reef she saw plenty of creatures that danced and made underwater noises. The glow remained, and she followed it. Though the rest was blue she could notice the sun was shining upon the surface, and little beings floated around her. She even saw an octopus playing a synthesizer and a starfish playing harp. The music they made whas beautifully hypnotic and somehow she felt very happy. The little luminous fish was still there, somewhere in the distance. It drove her into a cave, full of crystals that shook and sounded like bells. Someone in the cave was playing flute, or violin. But she began to feel strange. All at once, she felt huge and tiny and struggled in both ways: being huge, she could not move, being little, everything was harder cause the whole place seemed gigantic. The music was now much more mesmerizing and she felt she could see the sound. But... what is it like? She could not tell, sometimes it looked like smoke. Sometimes it seemed like clouds. But when she thought about it, she could only see the notes swimming a line and surrounding her, getting tangled round her legs or her waist. Thet made her dance and swim out of the cave. There she saw the fish in a glimpse and swam after it again. Then she realized she had returned to the place where the bed was and the fish was there, lying on it, sleeping. She lied down beside it and the bed began to lift up, ascend to the surface with the same falling-feather movement. She shut her eyes and when she opened them, her dream had been so real that her clothes were wet, and there was a fish-shaped stain of salty water right beside her.