It's lines like this that enabled the early Christians to say that Stoicism was a tutor—handmaiden is the word Rowe uses, I think—leading to Christianity.
It sounds almost Christian, doesn't it? "Where your treasure is, there your heart will be," as Jesus said. But, if you know much about Stoicism, you know that the theological presuppositions are diametrically opposed to Christianity. Their concept of God is pantheistic and impersonal.