"Having no life" is a main reason for being sent to hell. Truckers who drive all day every day are the same. Doctors work too many hours too many days. They have no contact with human life so their mental concepts become insectoid, then viral, then they become lower ghosts, something which barely exist.
It does not mean "having a life" in the sense of having a set of things considered important in society's mainstream. It means having a humane way of thinking and living. Enjoying natural landscapes, village life, small scale home farming, painting, music, normal everyday social interactions.
The tea ceremony is an example of ritualistically maintaining a human concept in an environment which may be all but humane. There are other things which have this effect, even if it's made into a ritualistic interpretation of normal life. Compare this to having "a coffee on the run", paying $20 for dry frozen powder in electrically heated water served in a paper cup, then drunk standing on the train. This is nothing more than drug use, it's not a human way of drinking, it's less than that. There are many inventions made to strip humans of their life while maintaining their physical function, so that they become something barely more than zombies. This leads to hell.
