What are the components, the categories (the dhammas)that have to be observed in dhammanupassana (the 4th field of satipatthana)?
The categories are:
- 5 hindrances
- 5 aggregates of clinging
- 6 internal and 6 external sense-bases
- 7 awakening-factors
- 4 noble truths
Sourced from: Mahā Sati’patthāna Sutta