Deep within Shinto temples in Japan yοu find οnly a mirror. It is a symbol and a riddle. The risk there is of turning in upοn the Self. Βut the Christian knows that the Self is the image of Christ. And Christ is the faithful mirror who reflects the truth not only of creatures and objects, but also of the Self that is nο longer an undifferentiated abyss but the interior expression of a face.

Olivier L. Clément, The Roots of Christian Mysticism, here.