The first of the four truths of the noble ones. The term “suffering” includes all essentially unsatisfactory experiences of life in cyclic existence, whether physical or mental. These comprise (1) the suffering of suffering, i.e., the physical sensations and mental experiences that are self-evident as suffering and toward which spontaneous feelings of aversion arise; (2) the suffering of change, i.e., all experiences that are normally recognized as pleasant and desirable, but which are nonetheless suffering in that persistent indulgence in these always results in changing attitudes of dissatisfaction and boredom; and (3) the suffering of the pervasive conditioning underlying the round of birth, aging, and death.