Beginning in the Middle Ages, and even more so in the 18th century and later, non-Christian rationalists and classicists began to advocate cremation again as a statement denying the resurrection and/or the afterlife, although the pro-cremation movement often took care to address these concerns. Sentiment within the Catholic Church against cremation became hardened in the face of the association of cremation with "professed enemies of God." When Masonic groups advocated cremation as a means of rejecting Christian belief in the resurrection, the Holy See forbade Catholics to practise cremation in 1886. The 1917 Code of Canon Law incorporated this ban. In 1963, recognizing that, in general, cremation was being sought for practical purposes and not as a denial of bodily resurrection, the choice of cremation was permitted in some circumstances. The current 1983 Code of Canon Law, states: "The Church earnestly recommends the pious custom of Christian burial be retained; but it does not entirely forbid cremation, except if this is chosen for reasons which are contrary to Christian teaching."