Glancing through Diarmaid MacCulloch’s three-thousand year history of Christianity, I noticed an astute point by the author. It is the inverse relationship that exists in the contemporary setting between churches teaching about hell and churches opposing cremation.
It is observable that certain aspects of the Christian past are being jettisoned without fuss even within self-consciously traditional religion. The most notable casualty of the past century has been Hell. It has dropped out of Christian preaching or much popular concern, first among Protestants, then later among Catholics, who have also ceased to pay much attention to that aspect of Western doctrine which seemed all-consuming in the Latin Church on the eve of the Reformation, Purgatory. (1012)
MacCulloch goes on:
A particularly suprising development in Christianity, admittedly so far noticeable mainly in the West, is the abandonment of a key aspect of Christian practice since its early days, inhumation of corpses. As hellfire receded, there advanced the literal fires of the crematorium; such fire, previously reserved by Christians for heretics, now routinely forms the liturgical climax to encomia of the good things in the life of the deceased. (1013)
One last point that MacCulloch makes is that cremation took root in the West among liberal Italian nationalists who were often forbidden from being buried in church graveyards. Cremation as such was a gesture of anti-clericalism.
Not sure I have much of a point here except to recover reasons against cremation.