▁and ▁rit uals ▁address ing ▁practical ▁issues ▁of ▁daily ▁life ▁of ▁the ▁V edic ▁society , ▁and ▁it ▁is ▁not ▁a ▁lit urg ical ▁Y aj ur ved a - style ▁collection . ▁ ▁Rec ensions ▁The ▁, ▁a ▁later ▁era ▁S ansk rit ▁text , ▁states ▁that ▁the ▁Ath ar v av eda ▁had ▁nine ▁sh ak has , ▁or ▁schools : ▁, ▁, ▁, ▁, ▁, ▁, ▁, ▁ ▁and ▁. ▁ ▁Of ▁these , ▁only ▁the ▁Sh a un aki ya ▁rec ension , ▁and ▁the ▁more ▁recently ▁discovered ▁manuscript s ▁of ▁P ai pp al ā da ▁rec ension ▁have ▁surv ived . ▁The ▁P ai pp al ā da ▁edition ▁is ▁more ▁ancient . ▁The ▁two ▁rec ensions ▁differ ▁in ▁how ▁they ▁are ▁organized , ▁as ▁well ▁as ▁content . ▁For ▁example , ▁the ▁Book ▁ 1 0 ▁of ▁P ai pp al ada ▁rec ension ▁is ▁more ▁detailed ▁and ▁observed ▁carefully ▁not ▁doing ▁a ▁single ▁mistake , ▁more ▁developed ▁and ▁more ▁consp ic uous ▁in ▁describing ▁mon ism , ▁the ▁concept ▁of ▁" on eness ▁of ▁Bra h man , ▁all ▁life ▁forms ▁and ▁the ▁world ". ▁ ▁Organ ization ▁The ▁Ath ar v av eda ▁Sam h ita ▁originally ▁was ▁organized ▁into ▁ 1 8 ▁books ▁( ), ▁and ▁the ▁last ▁two ▁were ▁added ▁later . ▁These ▁books ▁are ▁arranged ▁neither ▁by ▁subject ▁nor ▁by ▁authors ▁( as ▁is ▁the ▁case ▁with ▁the ▁other ▁V ed as ), ▁but ▁by ▁the ▁length ▁of ▁the ▁h ym