Thorough knowing

Bhikkhus, these four are things. What four?

Bhikkhus, there are things to be thoroughly known and accurately perceived, there are things to be thoroughly known and dispelled, there are things to be thoroughly known and developed and there are things to be thoroughly known and realized.

Bhikkhus, what things should be thoroughly known and accurately perceived?

Bhikkhus, the five holding masses should be thoroughly known and accurately perceived.

Bhikkhus, what things should be thoroughly known and dispelled?

Bhikkhus, ignorance and the craving `to be' should be thoroughly known and dispelled.

Bhikkhus, what things should be thoroughly known and developed?

Bhikkhus, calm and insight should be thoroughly known and developed.

Bhikkhus, what things should be thoroughly known and realized?

Bhikkhus, knowledge and release should be thoroughly known and realized.

Bhikkhus, these are the four things.