How to Meditate in a Gong Bath

I forgot to tell you something about my visit to Instagram Island. There was this influencer slash spiritual meditation, yoga-y type person from India. And his big activity that he was doing was a gong bath. Have you ever done a gongbath? It will not surprise you, really. But no, I have not done a gONG bath. Do you know what a gong Bath is? No, please explain what it is.