▁( Ch ault ris ▁or ▁Ch aw ad is ) ▁are ▁used ▁for ▁festiv als ▁and ▁daily ▁gather ings . ▁ ▁A ▁temple ▁always ▁contains ▁temple ▁t anks ▁or ▁well s ▁for ▁water ▁called ▁the er th am ▁used ▁for ▁sacred ▁purposes ▁of ▁ab l ution . ▁ ▁Common ▁Term in ologies ▁These ▁termin ologies ▁are ▁not ▁specific ▁to ▁Sh iva ▁tem ples ▁in ▁T amil ▁N adu , ▁but ▁common ▁across ▁all ▁tem ples ▁built ▁in ▁D rav id ian ▁architecture . ▁ ▁M ool a ▁S ann id hi ▁or ▁Gar b h ag ri ha ▁▁ ▁Gar b h ag ri ha ▁or ▁gar b ha ▁g ṛ ha ▁( De van ag ari : ▁ ग र ् भ ग <0xE0> <0xA5> <0x84> ह ) ▁is ▁a ▁S ansk rit ▁word ▁meaning ▁the ▁interior ▁of ▁the ▁san ct um ▁san ctor um , ▁the ▁inn erm ost ▁san ct um ▁of ▁a ▁H indu ▁temple ▁where ▁res ides ▁the ▁mur ti ▁( id ol ▁or ▁icon ) ▁of ▁the ▁primary ▁de ity ▁of ▁the ▁temple . ▁Liter ally ▁the ▁word ▁means ▁" w omb ▁chamber ", ▁from ▁the ▁S ansk rit ▁words ▁gar b ha ▁for ▁w omb ▁and ▁g ri ha ▁for ▁house . ▁Only ▁pu j ari ▁( p ri ests ) ▁are ▁allowed ▁to ▁enter ▁the ▁san ct um . ▁ ▁V iman am ▁▁ ▁V im ana ▁( T amil : வ ி ம ா ன ம ் ) ▁is ▁a ▁term ▁for ▁the ▁tower