It is heresy to hold that the souls of those who die in the state of mortal sin are annihilated. No, they are not annihilated. They are living a death, damned forever.
To put this thesis forth — soul annihilation — as consolation is to beg for human respect and to condemn a soul forever. Whoever does this condemns presently living souls to hell forever. How? Because he deludes them into thinking that there is no eternal damnation. Fact is: There is. False consolations are wicked.