Inertia
Our sense of self is based on fixed structures. In fact, the
sense of self is itself a fixed structure. So our feeling of identity
is ordinarily unchanging. Our sense of who we are has a conditioned
quality to it, which means that we have a habitual tendency to
experience things in a certain way, to think of things a certain
way, to know and do things in a certain way over and over again.
And it is not only our perception that tends to be confined to
a certain groove; even our experience of ourselves is limited
and constructed within certain boundaries. This rigidity of the
ego-self, its inflexibility, can be experienced as inertia: the
habit of going on and on in the same way, in the same direction,
without change. (Spacecruiser Inquiry, pg 147)