<p><em style="line-height: 1.5; background-color: initial;">… there is a purgatorial fire in which the souls of the pious are purified by a temporary punishment so that an entrance may be opened for them into the eternal country in which nothing stained can enter … [Souls detained in purgatory] are helped by the suffrages of the faithful, but especially by the acceptable sacrifice of the altar.</em></p>
session 25, (December 1563) as quoted by Alice Turner in History of Hell, p. 127