The best kind of love involves benevolence. But how then can a love for God be of the best kind? Aquinas answers this problem basically by saying that we can do good to God by doing good to those God loves--namely, our neighbor. This is a good answer, but I also got another Thomistic answer from my friend Richard Sisca on Saturday: we can rejoice that God enjoys perfect beatitude. For Aquinas there are two ways of having the other's good in one's will: (a) by willing that good things should happen to the beloved; and (b) by mourning the evils and rejoicing in the goods that the beloved suffers or enjoys.