"Ether" was considered to be a substance that fills the heavens in the ancient Greek era.
After that, "ether" was virtualized as a medium that transmits light.
Special air is flowing around the plants in the greenhouse.
Dense air that fills a limited space.
The light through the glass flies with the rising water vapor.
An artificial subtropical and hot world.
Life is condensed in this, and reincarnation is repeated.
Plants make life shine in the continuous time of moments.
Until it decays and sinks in the water or returns to the soil.
"Ether" fills the greenhouse forever.