When the fire begins to burn the snakes begin to crawl is not thematic, however it does challenge one in the area of obedience and possessing a willingness to change as the Spirit of God directs. One of the easiest things for the believer to do is to become settled and satisfied with a level of dullness and defeat. This surely is not the desire or plan God has for us. This can change, but not without obedience. Among those changes is spending time with the Father. That lesson is shared in the chapter on a meal with the Master. In addition, the chapter on when the fire begins to burn shares the truth of one being willing to make adjustments as the Holy Spirit stirs and directs, and not to be hasty in making judgments. There is also the valuable truth of each person facing God in judgment; no, not at the same time or for the same thing, but the same God! My prayer is that you will find the book something of a challenge to draw closer to the One Who shed His blood, and made salvation possible for you.