nirvana is not permanent.
"And why is it not permanent? Because projections of individual or shared characteristics are impermanent.
Therefore it is not permanent.
And why is it not impermanent?
Because it is the personal realization attained by all sages of the past, the present, and the future.
Therefore it is not impermanent."
Follow
attachment to the self existence of x.
brings anger and fear when people change or don't behave according to how your projections have portrayed them.
"Attachment to the self-existence of objects comes from not realizing that the distinctions that arise are perceptions of one’s own mind."