Seahorse Valley

I saw one of these at a festival once.  I was watching the starlit edges of clouds reflect showers of crystals which mingled with the stars themselves. Then someone shone one of those laser pens up into the sky.  I thought "Oh that's trippy."  Then it went berserk.  I had to hang onto the grass for all I was worth to stop being sucked up into it.  They say flashbacks wear off after a while but I'm beginning to feel a little confused now.  I want to keep making it bigger and bigger and bigger but I can't afford to, I have to go to work tomorrow and I have to be back in time.