Book excerpt: Wow, where did that thought come from? If you've ever had that thought, this book is for you. Everything starts with a thought, great ideas, and inventions, for example, but also horrible ideas, and sin starts with a thought as well. So, what is a person to do? Are we doomed to simply be the bearers of whatever thoughts race through our minds at any given time? By no means; as children of God we have everything we need to live well, starting with the thoughts in our minds. We are not captives to our thoughts, but in fact we can take our thoughts captive. This book looks at four different aspects that lead to developing a theology of a sound mind and a good thought life. To build a sound mind, one must be actively involved in the process. The information gained on what a sound mind is, how to improve and activate it, and healthy habits to incorporate to strengthen the mind should be continually applied--both for our benefit and, most importantly, so each person can honor and glorify God to the best of their ability.