Keep up holy and spiritual affections; for such as your affections are, such will be your thoughts: “Oh how I love thy law! it is my meditation all the day” (Ps 119:97). What we love most, we most muse upon: “When I awake, I am still with thee” (Ps 139), etc. That which we much like, we shall much mind. They that are frequent in their love to God and his law, will be frequent in thinking of God and his law: a child will not forget his mother.

—Thomas Brooks
The Complete Works of Thomas Brooks, 1:89.