St.Paul has a wonderful word on this subject: God, he says, "is able to do exceeding abundantly above all that we ask or think." When our heart is stirred to its depths, what large, great things can we ask in words?
Then, how much can we put into thoughts of prayer, into longings, desires, aspirations, beyond the possibilities of speech?
God can do more than we can pray either in words or thoughts.
Our truest praying is that which we cannot express in any words, our heart's unutterable longings, when we sit at God's feet and look up into his face and do not speak at all, but let our hearts talk.
"Rather as friends sit sometimes hand in hand, Nor mar with words the sweet speech of their eyes; So in soft silence let us oftener bow, Nor try with words to make God understand.
Longing is prayer; upon its wings we rise To where the breath of heaven beats upon our brow." Our best, truest prayers are not for earthly things, but for spiritual blessings.

When the objects are temporal, we do not know what we should pray for--what would be really a blessing to us.

You are a loving parent, and your child is very ill.

It seems that it must die.
You fall upon your knees before God to pray, but you do not know what to ask.

Your breaking heart would quickly plead, "Lord, spare my precious child"; but you do not know that that is best.