Love is fed by the imagination, by which we become wiser than we know, better than we feel, nobler than we are: by which we can see life as a whole, by which and by which alone we can understand others in their real and their ideal relation. Only what is fine, and finely conceived can feed love. But anything will feed hate.
It is good to love God for hope of reward, but it is better to love God for love's sake; and the prayer goes: O Lord, I do not want wealth nor children nor learning. If it be Thy will, I shall go from birth to birth. But grant me this, that I may love thee without the hope of reward 'love' unselfishly for love's sake.