A quote from Julian of Norwich on prayer:
…often our trust is not complete, for we are not certain that almighty God hears us, because of our unworthiness, it seems to us, and because we are feeling nothing at all; for often we are as barren and dry after our prayers as we were before. And thuswhen we feel so, it is our folly which is the cause of our weakness, for I have experienced this in myself. And our Lord brought all this suddenly to my mind, and gave me great strength and vitality to combat this kind of weakness in praying, and said: I am the fountain of your beseeching. First, it is my will that you should have it, and then I make you to wish it, and then I make you beseech it. And if you beseech, how could it be that you would not have what you beseech?
…But God’s love is so great that he regards us as partners in his good work; and so he moves us to pray for what it pleases him to do, for whatever prayer or good desire comes to us by his gift he will repay us for, and give us eternal reward.
From Julian of Norwich, Showings, Short text, Chapter XIX