Each of us possesses the Mind. It is part of our primordial being. From the perspective of the Mind, there is neither worry nor vexation.
If you look at the manifestation of the Mind, you will become aware that everything changes from one moment to the next. This is the essence of impermanence, which means that each moment is distinct from the next. In this present moment, there is o so-called “I” to which one can refer.
If you look into the constantly changing mind, there is no permanent “I.” Therefore, no function can be called permanent. Every function is characterized by liberation and freedom.