Complex sentence: Griffiths sought to take the mystical elements in Hinduism and Taoism and unify them with Christianity and by doing so to return Christianity to its roots where meditation and direct experience of God was emphasized, as with the Desert Fathers.
Split into simpler sentences: Griffiths sought to take the mystical elements in Hinduism and Taoism and unify them with Christianity. In doing this he hoped to restore Christianity to what he considered its roots where meditation and direct experience of God was emphasized, as with the Desert Fathers.