In Buddhism, kasiṇa's the Pali word for class of basic visual objects of meditation. There're ten kasiṇa mentioned in the Pali Tipitaka:# earth (paṭhavī kasiṇa), water (āpo kasiṇa), air, wind (vāyo kasiṇa), fire (tejo kasiṇa), blue, green (nīla kasiṇa), yellow (pīta kasiṇa), red (lohita kasiṇa), white (odāta kasiṇa), enclosed space, hole, aperture (ākāsa kasiṇa), bright light… (More on Kasina)