The opá iku is applied when praying the moyuba (mojuba) towards the ancestors, by tapping it on the bottom to connect with up Egun being present. While in the Yoruba homeland, the tapping of this staff was basically carried out in addition to the graves on the buried ancestors in https://claytonodimr.link4blogs.com/50859732/the-the-drc-to-the-following-countries-diaries