Joseph Goldstein’s One Dharma claims in places to be a “unified theory of Dharma” that combines “all the lineages of Buddhism.”
The book begins with a two-page endorsement from the Dalai Lama. The Dalai Lama is widely (mis)understood in the West as the Pope of Tibetan Buddhism. The most distinctive feature of Tibetan Buddhism is its inclusion of Buddhist Tantra.
However, One Dharma is 100% Tantra-free.
It’s hard to imagine the Pope of Rome endorsing a book by a Muslim about the unity of all the Abrahamic religions. But it would be particularly hard to imagine if the book never mentioned any distinctively Catholic doctrine.
It might seem that something odd is going on here… But in fact a Tantra-free Western Buddhism is precisely what the Dalai Lama would want to endorse.