1. Ardency-In the Satipatthana Sutta, he told his followers that they would need the quality of ardency on their journey, meaning the ability to sustain their efforts over the long haul.
2. Impermanence-In Buddhism, all things change except for nibbana – that highest form of happiness. Emotions and thoughts come and go, and the world we live in is one of birth, growth, decay, and death. 
3. When you accept that suffering comes from the self, you realize renouncing the self not only ends your suffering, but also the suffering you cause others. The Buddha called this sense of purpose clear comprehension.

The first is impermanence. Feel your nerves spark with micro-sensations, and note that these always pass. Second, witness the driving force of suffering. See how you shift positions to counter an ache in your tailbone or stretch to ease a cramp.

Third and last, see how mindfulness of the b...