A Buddhist term referring to a mild face and a gentle and thoughtful conversation. The first two characters “和顔 Wagen” are gentle faces. The last two letters “愛語 Aigo” are words with a feeling of love. Japan call “Wa gen ai go” and “Wa gan ai go”.
It’s the immaterial part of a person. It’s a secular form of gospel that was a major Black musical genre in the 1960s and 1970s. And it’s deep feeling or emotion. Japanese says Tamashii.