A dandelion is a wild plant which has yellow flowers with lots of thin petals. When you blow the petals, all the seeds drop off, your dream wonder goes with the seeds. It symbolizes what you wish and is considered to bring good luck and prosperity.
All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.