I am currently blogging through a series on the role of the mind in loving God. I am working through the book, "Think", written by John Piper. Here are some links to the different chapters.
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5 - part 1
Chapter 5 - part 2
Additionally here is a link to messages at the Desiring God conference on this topic.
I am also blogging (very slowly) through CS Lewis's works, beginning with Mere Christianity. I put him here because he epitomizes, in my opinion, the person whose mind serves the heart's joy in God.
Mere Christianity:
Chapter 1
Chapter 2