Whoever 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.
Were you to ask what are the means of overcoming temptations, I would answer: The first means is prayer; the second is prayer; the third is prayer, and you should you ask me a thousand times, I would repeat the same.
- St. Alphonsus Ligouri