Buddha Abhidhamma - Ultimate Science - BuddhaNet

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4 Vàyo-kasiõa – air-kasiõa; to develop it, one concentrates
on the wind which blows the hair-tops or the grass-tops
or which touches the cheek.
5 Nãla-kasiõa – brown-kasiõa; take a brown circle of paper
or cloth on a white background.
6 Pãta-kasiõa – yellow or golden-coloured kasiõa; prepare
as above.
7 Lohita-kasiõa – red-kasiõa; prepare as above.
8 Odàta-kasiõa – white-kasiõa; take a white circle of paper
or cloth on a black background.
9 âloka-kasiõa – light-kasiõa; it may be developed by
concentrating on the morning or evening sun, on the
moon, or on a circle of light cast on the floor or wall by
sunlight entering through a hole in the wall.
10 âkàsa-kasiõa – space-kasiõa; it may be developed by
looking through a hole in the wall towards the outside
space having sky as background.
An example of meditation on kasiõa will be illustrated soon.
One can develop all the five råpàvacara-jhànas by meditating on
a kasiõa. One can the precede on to develop four aråpàvacarajhànas
and five lokiya-abhi¤¤àõas (mundane super-knowledge)
based on the ten kasiõas.
Ten Asubhas
They refer to ten kinds of corpses which were found in ancient
Indian cemeteries where dead bodies were not buried or
cremated and where flesh-eating animals such as dogs, wolves
and vultures frequent.
In modern days any kind of corpse which shows the
loathsomeness of the body is a suitable object for meditation.