How to find serenity is outlined in the previous three points. To help you practice each key, you still need to have access to certain materials. The best place to begin that process is with these well-known Christian works.

1. A Gospel Primer by Milton Vincent.

Vincent argues that reading the gospel message every day, renewing our thoughts with the truth that we are saved by grace, is a key to escaping legalism and neurotic striving to do everything correctly. For readers to read every day, he offers the gospel message in two formats: as a poem and as a series of prose remarks.

2. The Spirit of the Disciplines by Dallas Willard.

Willard believes that too many Christians have lost how to live as Jesus lived, which is the primary issue behind why churches have frequently done a poor job of offering meaningful issues to present difficulties (addiction, suicide, etc.). He lists the spiritual practices that Jesus taught and did (prayer, helping others, spending time alone with God), which can be helpful for us today.

3. The Way of the Heart by Henri Nouwen.

In this book, Nouwen explores how a particular spiritual discipline—quiet time for reflection, similar to that practiced by the Desert Fathers—can benefit modern Christians. Due to their frequent exposure to conflict and temptation, he highlights how it applies to clergy in particular.

4.  Devotional Classics edited by Robert Foster and James Bryan Smith.

Foster and Smith provide a series of classic Christian devotional writings, from C.S. Lewis to John Chrysostom, which reflect on different aspects of the spiritual life (prayer, reading the Bible, etc.). Each chapter includes an accompanying Bible verse, reflection questions, and recommended exercises (for individuals or small groups).