Four (4) cowrie shells are cast for confirmation.
After the consultant had the 16 shells cast and interpreted, and they still have doubts or need to have more reassurance or accuracy about something that they had asked to the oracle before (to be sure about the answer), they have these 4 shells cast.
The shells are cast 3 times, one after another, and the questions are always the same.
The result will be the interpretation of the average of those 3 falls.
3 positive falls: the anwser is yes;
2 positive falls and 1 negative fall: yes , but there are obstacles and setbacks to deal with;
1 positive fall and 2 negative falls: no to the consultant’s question;
3 negative falls: definitely not.