Suffering
Also, there have always existed a few people with the knowledge
that most of this suffering is due to man’s alienation from
himself. Most of our dissatisfaction comes not from sickness or
material problems, but from not being ourselves. Not much can
be done about the suffering caused by sickness or ageing. Some
people have seen, however, that the emotional suffering is not
inevitable in the same way. It is this alienation which leaves
us with a sense of emptiness, of deep suffering. In time, physical
difficulties, psychosomatic diseases and the like, result. (Diamond
Heart Book 1, pg 36)

Personality without Essence is suffering. Personality with attachment
to Essence is a disaster. (Diamond Heart Book 2, pg 43)