St. Seraphim of Sarov 1759-1833
For instance, you would like to go to Church, but there is no Church or the Service is over; you would like to give alms to a beggar, but there isn’t one, or you have nothing to give; you would like to preserve your virginity, but you have not the strength to do so because of your temperament, or because of the violence of the wiles of the enemy which on account of your human weakness you cannot withstand; you would like to do some other good deed for Christ’s sake, but either you have not the strength or the opportunity is lacking. This certainly does not apply to prayer. Prayer is always possible for everyone, rich and poor, noble and humble, strong and weak, healthy and sick, righteous and sinful.
You may judge how great the power of prayer is even in a sinful person, when it is offered whole-heartedly, by the following example from Holy Tradition. When at the request of a desperate mother who had been deprived by death of her only son, a harlot whom she chanced to meet, still unclean, from her last sin, and who was touched by the mother’s deep sorrow, cried to the Lord: ‘Not for the sake of a wretched sinner like me, but for the sake of the tears of a mother sorrowing for her son and firmly trusting in Thy loving kindness and Thy almighty power, Christ God, raise up her son, O Lord!’ And the Lord raised him up.
You see, your Godliness! Great is the power of prayer, and it brings most of all the Spirit of God, and is most easily practiced by everyone. (A Wonderful Revelation to the World)