150 Indriyabalabodhyaṅgasabda. These are technical terms, but their meaning is not quite clear. Spence Hardy, in his _Manual_, p. 498, enumerates the five indrayas, viz. (1) sardhâwa, purity (probably _s_raddhâ, faith), (2) wiraya, persevering exertion (vîrya), (3) sati or smirti, the ascertainment of truth (sm_ri_ti), (4) samâdhi, tranquillity, (5) pragnâwa, wisdom (pra_gñ_â). The five balayas (bala), he adds, are the same as the five indrayas. The seven bowdyânga (bodhyaṅga) are, according to him: (1) sihi or smirti, the ascertainment of the truth by mental application, (2) dharmmawicha, the investigation of causes. (3) wîraya, persevering exertion, (4) prîti, joy, (5) passadhi, or prasrabdhi, tranquillity, (6) samâdhi, tranquillity in a higher degree, including freedom from all that disturbs either body or mind, (7) upekshâ, equanimity. It will be seen from this that some of these qualities or excellences occur both as indriyas and bodhyaṅgas, while balas are throughout identical with indriyas. Burnouf, however, in his _Lotus_, gives a list of five balas (from the _Vocabulaire Pentaglotte_) which correspond with the five indriyas of Spence Hardy: viz. _s_raddhâ-bala, power of faith, vîrya-bala, power of vigor, sm_ri_ti-bala, power of memory, samâdhi-bala, power of meditation, pra_gñ_â-bala, power of knowledge. They precede the seven bodhyaṅgas both in the _Lotus_, the _Vocabulaire Pentaglotte_, and the Lalita-Vistara. To these seven bodhyaṅgas Burnouf has assigned a special treatise (Appendix xii. p. 796). They occur both in Sanskrit and Pâli. 151 Niraya, the hells, also called Naraka. Yamaloka, the realm of Yama, the judge of the dead, is explained as the four Apâyas—_i. e._ Naraka, hell, Tiryagyoni, birth as animals, Pretaloka, realm of the dead, Asuraloka, realm of evil spirits. The three terms which are here used together occur likewise in a passage translated by Burnouf, _Introduction_, p. 544. 152 Iti sankhyâ_m_ ga_kkh_anti, they are called; _cf._ Childers, _s. v._ sankhyâ. Asankhyeya, even more than aprameya, is the recognized term for infinity. Burnouf, _Lotus_, p. 852.