Most people do only what they feel like doing,

failing to take into account the value of their human birth and the
consequences of their actions. This makes it difficult for them to fully
realize their human potential. There’s an old saying that someone is ‘not
all there’.

It refers to a basic lack of human potential arising from callous
insensitivity to the fact that human beings possess intrinsic qualities that
are superior to those of animals. This attitude promotes such degrading
behavior that some people end up damaged almost beyond repair – an
empty human shell lacking all intrinsic goodness. Even then, they are
unaware of what has happened to them, or why.


- Ajaahn Mun