We must not be strange to him in our thoughts, but make him the object of our most serious meditations: It is said of the wicked that “they are far from God;” and that “God is not in all their thoughts” (Ps 73:27; 10:4). The thoughts are the mind’s employment. It dwells on that which it frequently thinks of. It is a walk of the mind, and not of the body which we are treating of. To mind the world, and fleshly things, is contrary to this walk with God: we are far from him, when our thoughts are (ordinarily) far from him.

—Richard Baxter
The Practical Works of the Rev. Richard Baxter: Volume XIII, 167.