7 After the battle, then, I shall be crowned; after the crown, what shall I do? “He who satisfies your longing with good things”....Seek your own good, O soul. For one thing is good to one creature, another to another, and all creatures have a certain good of their own, to the completeness and perfection of their nature. There is a difference as to what is essential to each imperfect thing, in order that it may be made perfect; seek for your own good. “There is none good but One, that is, God.” The highest good is your good.
What then is wanting unto him to whom the highest good is good? For there are inferior goods, which are good to different creatures respectively. What, brethren, is good unto the cattle, save to fill the belly, to prevent want, to sleep, to indulge themselves, to exist, to be in health, to propagate? This is good to them: and within certain bounds it has an allotted measure of good, granted by God, the Creator of all things. Do you seek such a good as this? God gives also this: but do not pursue it alone. Can you, a coheir of Christ, rejoice in fellowship with cattle? Raise your hope to the good of all goods. He will be your good, by whom thou in your kind hast been made good, and by whom all things in their kind were made good. For God made all things very good....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)