It is said to be important to train the mind in concentration. Yet I say to you, train yourself to love the truth with all your heart! Then you will have no need of concentration, for the mind sticks inseparably and quite naturally to whatever it truly loves. If you find joy in a lover, then nothing can distract you from thinking about your lover. Likewise, if you love God, then you will not allow God to leave. It is not enough to love concentration, for then you will be forever focused on concentration, and will forget God.
You see, concentration by itself brings happiness, but not Truth; whereas love of Truth brings both concentration and Truth without effort. Love is warm, while concentration is cold by comparison. Concentration must become effortless, as it only can with love. So be wary of training, for you do not need to train yourself to eat lovely chocolate!