Jelly

Recently developed an obsession with jellyfish. Always thought they were considered animals, but the more I learn about them the more I am convinced that they are a plant. Someone said they belong to some kind of class of the phylum that I can't even pronounce. To me they're a plant. No brain, just nerves.
I think that's crazy. They eat, get it on, and travel but they don't have a brain. They go through life and just react to whatever comes their way. Food comes their way, they eat. An enemy comes, they sting. They find a unfertilized egg and reproduce. Simple. They go with the flow and just react, no complications of doubt or worry.