Functions of Citta in the Sense-Door Process and in the Mind-Door Process - Dvi-pañca- viññānas I
The citta which performs the function of seeing (dassana-kicca) only sees
visible object. This citta does not like or dislike, it is an ahetuka
vipākacitta. Neither does it think about the object. If one does not develop
right understanding one does not realize that the citta which only sees visible
object is a reality different from the citta which likes or disllikes the visible
object and different from the citta which pays attention to shape and form.
Because of our accumulated ignorance and wrong view we do not realize the
impermanence of citta which falls away as soon as it has arisen and which is
succeeded by another citta which is a different reality.
There are only two kinds of citta which can perform the function of seeing: one is akusala vipāka and one is kusala vipāka.