Mahathera Ledi Sayadaw - Abhidhamma.com

owing to the existence of this space that lumps of stone and iron can be broken up, or cut
into pieces, or pounded into dust, or melted.
The Two Vinnati-Rupa or Modes of Communications
Vinnatti-rupa means mode of communication or sign employed to communicate the
willingness, intention, or purpose, of one person to the understanding of another.
83. Kaya-vinnatti is that peculiar movement of body by which one's purpose is made known to
others.
84. Vaci-vinnatti is that peculiar movement of sounds in speech by which one's purpose is
made known to others.
Those who cannot see the minds of others know the purpose, the intention, the
willingness, of others through the use of these two modesof communication or Vinnattirupas.
These two are employed not only in communicating one's purpose or intention to
the understanding of another, but also in moving the parts of the body while walking, and
so forth, according to one's own will; as also in learning by heart, reading to one-self, and
so forth.
The Three Vikara-Rupas or the Three Plasticities
Vikara means the peculiar expression or distinctive condition of the Jata-rupas, the genetic
material qualities.
85. Lahuta is the lightness of the material quality.
86. Muduta is the pliancy of the material quality.
87. Kammannata is the adaptability of the two media of communication. When one of the
Four Great Essentials falls out of order and becomes disproportionate to the rest in any
parts of the body, these parts are not light as usual in applying themselves to some work,
but tend to become heavy and awkward; they are not pliable as usual, but tend to become
hard, coarse and rigid; they are not as adaptable as usual in their movements in accord
with one's will, but tend to become difficult and strained. Likewise when the Essentials are
out of order, the tongue, the lips, are not adaptable according to the wish in speaking, but
become firm and stiff. When the Four Great Essentials are in good order and the parts of
the body are in sound health, the matter of the body (rupa) is said to be in possession of
these qualities, i.e. lightness, pliancy, and adaptability, which are called the three
plasticities (vikara-rupas).
The Four Lakkhana-Rupas or the Four Salient Features
Lakkhana means salient feature or mark by means of which it is decisively known that all
material and mental qualities are subject to impermanence.
88. Upacaya-rupa means both integration and continuance of integration, of which the former
may be called Acaya (initial integration) and the latter Upacaya (sequent integration).