ic ▁and ▁bi otic ▁conditions ▁in ▁Si ber ut ▁and ▁the ▁rest ▁of ▁M ent aw ai ". ▁ ▁Culture ▁ ▁Bis ht ▁and ▁Bank oti ▁( 2 0 0 4 ) ▁state ▁that ▁there ▁are ▁at ▁least ▁ 1 1 ▁cult ur ally ▁different ▁communities ▁on ▁Si ber ut ▁Island . ▁The ▁Le iden ▁University ▁anth rop ologist , ▁Re imar ▁Sch ef old , ▁spent ▁several ▁years ▁living ▁on ▁Si ber ut ▁amongst ▁the ▁Sak ud de i . ▁According ▁to ▁Sch ef old , ▁" Every thing ▁from ▁people ▁to ▁p igs , ▁rocks ▁to ▁weather , ▁has ▁its ▁own ▁spirit ▁which ▁is ▁quite ▁separate ▁from ▁its ▁' host ' ▁and ▁is ▁free ▁to ▁w ander ▁as ▁it ▁wishes . ▁ ▁That ' s ▁why ▁you ▁see ▁that ▁everybody ▁has ▁a ▁different ▁pattern ▁of ▁t atto os ▁-- ▁they ▁want ▁to ▁make ▁sure ▁that ▁their ▁spirit ▁can ▁recognize ▁the ▁right ▁body ▁when ▁it ▁comes ▁back ▁from ▁its ▁night ly ▁travel s ." ▁However , ▁wind s ▁of ▁change ▁is ▁affect ing ▁the ▁younger ▁generation ▁of ▁Sak ud de is ' ▁cl an ▁as ▁observed ▁by ▁one ▁of ▁their ▁elder ly ▁leader , ▁known ▁as ▁rim ata , ▁who ▁said : ▁ ▁H ous ing ▁Their ▁traditional ▁house , ▁an ▁" uma ▁long house ", ▁is ▁built ▁on ▁st il ts . ▁This ▁traditional ▁house , ▁located ▁along ▁the ▁river ▁banks , ▁is ▁where ▁formal ▁cer emon ies ▁known ▁as ▁pun en ▁are ▁held , ▁when ▁the ▁entire ▁cl an ▁assemble