Swami Abhishiktananda was a French monk who came to India in 1948 to establish an "inculturated" form of Christian monasticism, a monasticism which would not simply reflect a European heritage but would be truly Indian life and culture. These led him to become greatly enamored of the Upanishads and to enter their spiritual world. yet he maintained his identity as a Catholic priest and strove to integrate the Upanishads with Christianity.
Ulrich, Edward T.
"Swami Abhishiktananda's Interreligious Hermeneutics of the Upanishads,"
Journal of Hindu-Christian Studies:
Vol. 16, Article 7.
Available at: http://dx.doi.org/10.7825/2164-6279.1296