Buddha Abhidhamma - Ultimate Science - BuddhaNet

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not arise. Therefore, at the time of their opapàtika-rebirth, only
the vital-nonad (jãvita-navaka) arises. During life, utuja-kalàpas,
with the exception of the sound-nonad, arise in addition.
Thus is kàma-loka and råpa-loka, the process of the arising
of material phenomena should be understood in two ways, that
is (1) at rebirth and (2) during life.
Summary of Material Phenomena
In summary, it should be noted that
1 all the 28 råpas arise in the kàma-sphere;
2 in the 15 råpa-plane, with the exception of Asa¤¤a-satta,
23 råpas arise (ghàna-pasàda, jivhà-pasàda, kàya-pasàda,
itthi-bhàva and purisa-bhàva being excluded);
3 only 17 råpas arise in the Asa¤¤asatta plane; they are 8
avinibbhogas, jãvita, pariccheda, 3 lahutàdi, 4 lakkhaõa-råpas;
4 no material arises in the aråpa-planes;
5 eight råpas comprising sadda, five vikàra-råpas, jaratàråpa
and aniccatà-råpa, do not arise at the moment of
birth (pañisandhi-kàla) whereas, during life time, there
is no råpa which is not formed.
Practical Observations
All the material phenomena described in this chapter can be
observed and verified by an interested person who will
undertake tranquillity meditation and insight meditation
strenuously.
Although råpa-kalàpas are invisible under powerful
microscopes, they can be observed by samàdhi-eye which is the
mind-eye accompanied by access-concentration or better by
jhàna-concentration.