The Three Marks of Existence
“[The Three Marks of Existence] is an analysis of the First Noble Truth, the doctrine of dukkha. The three characteristics simply provide a more detailed explanation of what is meant by dukkha, and in what sense our unenlightened experience of the world is one of suffering, frustration, or unsatisfactoriness.”
http://www.clear-vision.org/schools/students/ages-17-18/Nature-of-Reality/three-marks.aspx
All things in the human realm bear the three marks of existence, which are impermanence, suffering or disappointment (as we discussed before), and not-self…