Inherent unsatisfactoriness of existence, revealed in impermanence, pain and perpetual incompleteness; intrinsic to all forms:
- birth, aging, sickness, death
- sorrow, lamentation, pain, grief and despair
- association with unpleasant
- separation from pleasant
- not to get what one wants
Briefly, there are 5 aggregates of clinging, to:
- material form
- feelings
- perceptions
- mental formations
- consciousness
which gives rise to thoughts, emotions, ideas, dispositions dwelled upon in ‘our world’ and these 5 aggregates equate to suffering because of impermanence!
- changing from moment to moment
- arising and falling away
- without anything substantial behind them, persisting through the change
So to try to cling to something impermanent brings about suffering…