Work

What humans want are only feelings, ultimately.
This may sound natural, in a sense, though.
We do a great amount of work to satisfy those feelings.
For instance, just for a momentary sense of taste,
we nurture and kill life,
contemplate how to blend it through trial and error,
do research and development of devices.

Beam

When I sat on a train,
closing my eyes,
and felt somewhat bright,
a beam from the phone of a person
standing in front of me
was cast on my face ...

Oxygen

One cannot choose which oxygen to take,
even though it was illegally produced.
If one can choose, the person is not short of it ...