For the phrase in James 1:21 that is translated as “implanted (word)” or “(word that he plants) in your hearts” in English versions, Kahua uses a term for belly/chest as the seat of the emotions. (Source: David Clark)
In Owa it is translated as “planted in your soul” (=hearts). (Source: Carl Gross)
See also heart, soul, mind and Seat of the Mind / Seat of Emotions.