/summa/VII/VIII/AP1_Q1:
We must next consider the various qualities of souls that are stripped of their bodies, according to their respective states; and first we shall treat of the souls which depart this life with original sin only.
Under this head there are two points of inquiry:
(1) Whether these souls suffer from a bodily fire, and are inflicted with punishment by fire?
(2) Whether these souls suffer from a spiritual torment within themselves?