'Three delusions,'three afflictions.' (1) Three kinds of basic defilement: craving (tanyu 贪欲), anger (chenhui 嗔恚), and ignorance (yuchi 愚癡). These are equivalent to the 'three poisons' (sandu 三毒). (2) In Tiantai teaching 天台宗, the three delusions are: delusions arising from incorrect views and thoughts (jiansihuo 见思惑); delusions which hinder knowledge and are as numerous as the number of grains of sand in the Ganges river (chenshahuo 尘沙惑); and delusions which hinder knowledge of reality (wuminghuo 无明惑). The first type of delusion is dealt with by followers of Hi^naya^na 小乘 as well as Maha^ya^na 大乘. The latter two types are destroyed only by bodhisattvas.