"His commitment to Christianity and in particular to the Catholic Church was total... [A] source of unhappiness in his last years was the introduction of the vernacular mass, for the use of English in the liturgy rather than the Latin he had known and loved since boyhood pained him deeply. But even during an English mass...he would, when receiving communion, experience a profound spiritual joy, a state of contentment that he could reach in no other way. His religion was therefore one of the deepest and strongest elements in his personality."
January 1, 1970
https://en.wikiquote.org/wiki/J._R._R._Tolkien