What does MN 18's "delineate a delineation" phrase mean?

What is the meaning of the phrase "delineate a delineation" from MN 18 ? What is its message? Is it connecting papanca (objectification-classification or reification) with dependent origination? > "Now, when there is the eye, when there are forms, when there is > eye-consciousness, it is possible that one will delineate a > delineation of contact. (Note1) When there is a delineation of contact, it > is possible that one will delineate a delineation of feeling. When > there is a delineation of feeling, it is possible that one will > delineate a delineation of perception. When there is a delineation of > perception, it is possible that one will delineate a delineation of > thinking. When there is a delineation of thinking, it is possible that > one will delineate a delineation of being assailed by the perceptions > & categories of objectification. > > "When there is the ear... > > "When there is the nose... > > "When there is the tongue... > > "When there is the body... > > "When there is the intellect, when there are ideas, when there is > intellect-consciousness, it is possible that one will delineate a > delineation of contact. When there is a delineation of contact, it is > possible that one will delineate a delineation of feeling. When there > is a delineation of feeling, it is possible that one will delineate a > delineation of perception. When there is a delineation of perception, > it is possible that one will delineate a delineation of thinking. When > there is a delineation of thinking, it is possible that one will > delineate a delineation of being assailed by the perceptions & > categories of objectification. > > "Now, when there is no eye, when there are no forms, when there is no > eye-consciousness, it is impossible that one will delineate a > delineation of contact. When there is no delineation of contact, it is > impossible that one will delineate a delineation of feeling. When > there is no delineation of feeling, it is impossible that one will > delineate a delineation of perception. When there is no delineation of > perception, it is impossible that one will delineate a delineation of > thinking. When there is no delineation of thinking, it is impossible > that one will delineate a delineation of being assailed by the > perceptions & categories of objectification. > > "When there is no ear... > > "When there is no nose... > > "When there is no tongue... > > "When there is no body... > > "When there is no intellect, when there are no ideas, when there is no > intellect-consciousness, it is impossible that one will delineate a > delineation of contact. When there is no delineation of contact, it is > impossible that one will delineate a delineation of feeling. When > there is no delineation of feeling, it is impossible that one will > delineate a delineation of perception. When there is no delineation of > perception, it is impossible that one will delineate a delineation of > thinking. When there is no delineation of thinking, it is impossible > that one will delineate a delineation of being assailed by the > perceptions & categories of objectification. > > **Note1 (Thanissaro commentary):** > The artificiality of this phrase — "delineate a delineation" — seems > intentional. It underlines the artifice implicit in the process by > which the mind, in singling out events, turns them into discrete > things.