Man is one of your creatures, Lord, and his instinct is to praise you. He bears about him the mark of death, the sign of his own sin, to remind him that you thwart the proud. But still, since he is a part of your creation, he wishes to praise you. The thought of you stirs him so deeply that he cannot be content unless he praises you, because you made us for yourself and our hearts find no peace until they rest in you.
Christians lose nothing when they lose temporal things. Because honestly speaking, what did they lose? Their faith? Their godliness? The possessions of the hidden man of the heart, which in the sight of God are of great price? Did they lose these?
For these are the wealth of Christians, to whom the wealthy apostle said, “Godliness with contentment is great gain. For we brought nothing into this world, and it is certain we can carry nothing out. And having food and raiment, let us be therewith content. But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition. For the love of money is the root of all evil; which, while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.” 1 Tim. 6: 6-10.
Source: Augustine of Hippo, City of God