Evening Meditations for Whit Friday ~ St Alphonsus Liguori
The holy Fathers say, that prayer is necessary for us, not merely as a necessity of precept (so that divines say, that he who neglects for a month to recommend to God the affair of his salvation is not exempt from mortal sin), but also as a necessity of means, which is as much as to say, that whoever does not pray cannot possibly be saved.