Kiriya-Citta
kiriya-citta，or kriya-citta：'functional consciousness' or 'kammically inoperative consciousness'，is a name for such states of consciousness as are neither kammically wholesome （kusala），nor unwholesome （akusala），nor kamma-results （vipāka）； that is，they function independently of kamma．Thus are also called all those worldly mental states in the Arahat which are accompanied by 2 or 3 noble roots （greedlessness，hatelessness，undeludedness），being in the Arahat kammically neutral and corresponding to the kammically wholesome states of a non-Arahat （s．Tab．1-8 and 73-89），as well as the rootless mirth-producing （hasituppāda） mind-consciousness-element of the Arahat （Tab．72）； further，that mind-element （mano-dhātu） which performs the function of advertence （āvajjana） to the sense object （Tab．70），and that mind-consciousness-element （manoviññāṇa-dhātu） which performs the functions of deciding （voṭṭhapana） and advertence to the mental object （Tab．71）．The last-named 2 elements，of course，occur in all beings．
Together with kamma-resultant consciousness （vipāka） it belongs to the group of 'kammically neutral consciousness' （avyākata）．See Tab．I （last column）．- （App．）．