17. Knowledge of Reviewing
The duration of that threefold knowledge of maturity, path, and fruition is, however, not long. It is very short, and lasts for just an instant, like the duration of a single thought of noticing. Subsequently there arises "knowledge of reviewing." Through that knowledge of reviewing the meditator discerns that the insight leading to emergence came along with the very rapid function of noticing, and that immediately after the last phase of noticing, the path consciousness entered into the cessation (of formations). This is "knowledge reviewing the path."
He also discerns that the consciousness abided in that same state of cessation during the intervening period between the path and reviewing. This is "knowledge reviewing fruition."
-The Progress of Insight, Mahasi Sayadaw
As can be seen from the above, Knowledge of reviewing (of what just happened, breaking of fetters) happens after the moments cessation- non-arising of formations. This is a highly significant moment, because nirodha sacca (the truth of cessation-non-arising, is realised here. The practitioner realises that the culmination of all the vipassana nanas, the suppression of avijja) leads to breakdown of the process of re-becoming, it is the end of unsatisfactory fabrications arising. The 'escape' (nissaranaya) from the suffering of fabrications (one of the three types of dukkha) is experienced, directly, for him/herself. The practitioner did this by following the Noble Eightfold Path- hence now there is confirmation that there can be-it is possible- to escape ALL suffering/dukkha. If this were not the case the Buddha-dhamma would be another religion which promises escape after death. But it is not like that. You will know, in this lifetime, that following the noble eightfold path leads to the complete cessation of suffering. It is now known beyond doubt, beyond dogmatic promises of salvation. This leads to the breaking of the fetter of Doubt. It leads to the understanding that Samatha vipassana is not mere ritual, said to lead to emancipation, unverifiable for oneself. But rather that it is the path to the deathless state, beyond doubt, beyond conjecture, beyond debate.
Furthermore it can be seen, when anicca, dukkha, anatta is seen at it's deepest, there would be no craving for becoming. It can be understood that ignorance (absence of the insight knowledges) lead to becoming ie- arising and passing away, uninterrupted. The deep insight (vijja) leads to an interruption, pointing the way- that release is possible 'where there is an opportunity to do so' (as sometimes mentioned in the sutta).
I understand that I am weaving many threads together to cone up with the full picture. As I cannot verify this any further, I leave it to you to decide whether this makes sense or not.