According to Osho, when someone doesn’t feel like expressing, it isn’t a mental refusal—the medium for expression is missing. The inner energy is already there and self-propelled; once the right channel, form, or context appears, expression will happen on its own. Don’t coerce the mind; create or discover the suitable outlet and the energy will speak.
He’s not empty or stubborn—he just needs the right outlet, and then it will flow by itself.