One of the most commonly prescribed methods for ridding one 's self of an ogbanje was to find its iyi - uwa and destroy it .
Its iyi - uwa is a buried object that ties the evil spirit to the mortal world .
One of the most commonly prescribed methods for ridding one 's self of an ogbanje was to find its iyi - uwa , a buried object that ties the evil spirit to the mortal world , and destroy it .