▁right ▁to ▁learn ▁secret , ▁myst ical , ▁navig ational ▁l ore . ▁Pia il ug ' s ▁had ▁been ▁the ▁last ▁p wo ▁ceremony ▁to ▁be ▁held ▁on ▁S ata wal ." ▁Thomas , ▁Stephen ▁D . ▁( 1 9 8 7 ), ▁ ▁The ▁Last ▁N avigator . ▁New ▁York : ▁Henry ▁Hol t ▁and ▁Co . ▁ ▁"... the ▁notion ▁of ▁performing ▁the ▁p wo ▁r ites ▁gradually ▁gained ▁accept ance ▁and ▁in ▁May ▁ 1 9 9 0 , ▁for ▁the ▁first ▁time ▁in ▁over ▁forty ▁years , ▁a ▁few ▁individuals ▁who ▁had ▁been ▁studying ▁and ▁pract icing ▁traditional ▁navig ational ▁techniques ▁for ▁many ▁years ▁were ▁' grad u ated ' ▁on ▁Lam ot rek ▁and ▁officially ▁recognized ▁by ▁the ▁community - at - large ." ▁ ▁Met z gar , ▁Eric ▁( 1 9 9 1 ), ▁Trad itional ▁Education ▁in ▁Mic ron esia : ▁A ▁Case ▁Study ▁of ▁Lam ot rek ▁At oll ▁with ▁Compar ative ▁Analysis ▁of ▁the ▁Liter ature ▁on ▁the ▁Tru k ic ▁Cont inu um ." ▁Ph . D . ▁dis sert ation . ▁University ▁of ▁California , ▁Los ▁Angeles . ▁Ann ▁Ar bor , ▁Michigan : ▁University ▁Micro fil ms ▁ ▁International . ▁ ▁"... the ▁p wo ▁ceremony ▁is ▁first ▁and ▁for em ost ▁an ▁init iation ▁rit ual , ▁and ▁second arily ▁a ▁' grad u ation ' ▁or ▁' cert ification ' ▁rit ual ▁for ▁those ▁students ▁who ▁have ▁received ▁training ▁in ▁navig ational ▁techniques ▁over ▁a ▁period ▁of