Buddha Abhidhamma - Ultimate Science - BuddhaNet

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Especially the first five nivàranas blind our mental vision
and obstruct our moral actions. We have to wrestle with
them whenever we try to perform some good deed whether
it be saying some prayers or undertaking meditation. In
the presence of them we cannot reach neighbourhoodconcentration
(upacàra-samàdhi) and full concentration
(appanà-samàdhi), and are unable to discern clearly the truth.
1 Kàmacchanda – sense-desire; it is lobha in the 8 lobhamåla
cittas.
2 Vyàpàda – ill-will; it is dosa in the 2 dosa måla cittas.
3 Thina-middha – sloth and torpor; they are thina-cetasika
and middha-cetasika.
4 Uddhacca-kukkucca – restlessness and brooding or worry;
they are uddhacca-cetasika and kukkucca-cetasika.
5 Vicikicchà – sceptical doubt or perplexity; it is vicikicchàcetasika.
6 Avijjà – ignorance; it is moha present in the 12 akusala
cittas.
Notes:
a. Both sloth and torpor, restlessness and brooding are
grouped together because their functions (kicca), their
causes (hetu) and their opposing factors are the same.
The function of sloth and torpor is mental inactivity, their
cause is laziness, and they are opposed to energy (vãriya).
The function of restlessness and brooding is
disquietude, their cause is vexation about the loss of
property, etc., and they are opposed to tranquility.
b. In the beautiful similes given by Buddha in Anguttara
Nikàya, sense-desire is compared with water mixed with
manifold colours, ill-will with boiling water, sloth and