My understanding of the nature of purgatory and indulgences is that the guilt incuring temporary punishment and the expiation of that guilt is purely forensic. (Ironically, Protestantism seems to have inherited its doctrine on justification from this forensic nature of purgatory and indulgences.)
Is it possible to understand these doctrines without them being purely forensic?
If the answer is no, does this logically force Catholics to believe in retributive justice as being fundamentally true?
I’m just being my study on this subject, so any resources or books you know of would be very helpful.