[sEe]

For clear vipassana to occur, the mind must be free, imo

Trying to keep it at one place, such as the abdomen, will hinder vipassana, imo

Imo, for clear vipassana to occur, consciousness must be allowed to flexibility flow, so it can both clarify (purify) itself and embrace (merge with) objects

The more one tries to watch rising & falling at the abdomen, the more difficult one will make it

The Buddha did not instruct such techniques

"Seeing" is the natural function of consciousness. For the mind to "see clearly" (vipassana), the mind need simply stop its chatter