As divine love doth advance and elevate the soul, so it is that alone which can make it happy. The highest and most ravishing pleasures, the most solid and substantial delights, that human nature is capable of, are those which arise from the endearments of a well-placed and successful affection.—That which embitters love, and makes it ordinarily a very troublesome and hurtful passion, is the placing it on those who have not worth enough to deserve it, or affection and gratitude to requite it, or whose absence may deprive us of the pleasure of their converse, or their miseries occasion our trouble. To all these evils are they exposed, whose chief and supreme affection is placed on creatures like themselves: but the love of God delivers us from them all.

—Henry Scougal
The Works of the Rev. H. Scougal, 24.