I have no doubt. His books, obviously not written by him only as they are so numerous, all carry a pristine delicate wonderful teaching of tibetan buddhism.
His presence is huge: I met him personnally twice for 5 minutes in person in india, like many others who waited hours. His aura is huge and his energy does not lie: holy to the max. He is also so very handsome truly though no one should care about that of course. His gentle teachings about compassion are so needed in this world. And his teachings on gratitude for our precious human life.