All souls in hell are there because they did not pray. All the saints sanctified themselves by prayer.
Alphonsus LiguoriWhat grieves me most in my past offenses, O my loving God, is not so much the punishment I have deserved, as the displeasure I have given You, Who are worthy of infinite love.
Alphonsus LiguoriIf we should be saved and become saints, we ought always to stand at the gates of the Divine mercy to beg and pray for, as an alms, all that we need.
Alphonsus LiguoriWhoever prays is certainly saved. He who does not is certainly damned. All the blessed have been saved by prayer. All the damned have been lost through not praying. If they had prayed they would not have been lost. And this is, and will be their greatest torment in hell: to think how easily they might have been saved, just by asking God for His grace, but that now it is too late - their time of prayer is gone.
Alphonsus Liguori