Function of Javana - Panna can eradicate all kinds of akusala

The Buddha, out of compassion, taught people the way to have less akusala.

He encouraged them to perform all kinds of kusala, no matter whether it is

dāna (generosity), sīla (morality) or bhāvanā (mental development). He

taught the development of the wisdom which can eradicate all kinds of

akusala. There are different degrees of paññā. If paññā merely knows what is

kusala and what is akusala, it is not of the degree that it can eradicate

akusala. When paññā  has not been developed to the degree of 'insight-

wisdom', there is still a concept of self who cultivates wholesomeness and

abstains from ill deeds. When there is the concept of self, defilements cannot

be eradicated.

The person who is not an ariyan may be able to observe the five precepts,

but there is a difference between him and the ariyan who observes them. The

non-ariyan may transgress them when there are conditions for it while for the

ariyan there aren't any more conditions for transgressing them. Moreover, the

ariyan who observes sila does not take the observing of sīla for self any more,

since he has eradicated the latent tendency towards wrong view. Thus his sila

is purer. He is on the way leading to the eradication of all defilements.

  When we are not mindful of realities, we take the objects we experience for self. When paññā realizes the objects which are experienced as nāma and rūpa, elements which do not last, there is less opportunity for akusala javana- cittas.