_S. Thomas:_ The fruits of prayer are twofold. For first there is the merit which thereby accrues to a man; and, secondly, there is the spiritual consolation and devotion which is begotten of prayer. And he who does not attend to, or does not understand his prayer, loses that fruit which is spiritual consolation; but we cannot say that he loses that fruit which is merit, for then we should have to say that very many prayers were without merit since a man can hardly say the _Lord's Prayer_ without some distraction of mind. Hence we must rather say that when a person is praying and is sometimes distracted from what he is saying, or--more generally--when a person is occupied with some meritorious work and does not continuously and at every moment reflect that he is doing it for God, his work does not cease to be meritorious. And the reason is that in meritorious acts directed to a right end it is not requisite that our intention should be referred to that end at every moment, but the influence of the intention with which we begun persists throughout even though we now and again be distracted in some particular point; and the influence of this initial intention renders the whole body of what we do meritorious unless it be broken off by reason of some contrary affection intruding itself and diverting us from the end we had first in view to some other end contrary to it. And it must be remembered that there are three kinds of attention. The first is attention to the words we are actually saying; and sometimes this is harmful, for it may hinder devotion. The second is attention to the meaning of the words, and this, too, may be harmful, though not gravely so. The third is attention to the goal of our prayer, and this better and almost necessary (_Commentary on 1 Cor._ xiv. 14). XIV Should our Prayers be Long? It would seem that we ought to pray continuously, for our Lord said: _We ought always to pray and not to faint[222];_ so also S. Paul: _Pray without ceasing_.[223] But we must notice that when we speak of prayer we can mean either prayer _considered in itself_ or the _cause of prayer_. Now the _cause of prayer_ is the desire of the love of God; and all prayer ought to spring from this desire which is, indeed, continuous in us, whether actually or virtually, since this desire virtually remains in everything which we do from charity. But we ought to do all things for the glory of God: _whether you eat or whether you drink, or whatsoever else you do, do all to the glory of God_.[224] In this sense, then, prayer ought to be continual. Hence S. Augustine says to Proba: "Therefore by our faith, by our hope, and by our charity, we are always praying, for our desire is continued."