In Marjorie Thompson's book Soul Feast she teaches principles that should be red flags to Christians.

• In chapter 7 (pp. 107++) she endorses the need for a "spiritual director" or a "spiritual guide." This concept sounds appropriate and helpful in her book but let's discern for a moment here...What does God's Word show us? Jesus is our mediator. We don't need anything or anyone else!! The idea of a "spiritual guide/helper/director" on the surface doesn't sound so dangerous but where could it possibly lead us? The "guide" is to listen to us, help us notice things, help us respond to God with greater freedom, points us to practical disciplines of spiritual growth, and makes us not dependent upon Christ or the Holy Spirit but on our "human guide." Where in God's Word does it say we need another human to be our guide? What if that human guide's "guide" is not trustworthy? What, specifically, grows them spiritually?
• On page 106, Ms. Thompson encourages the "art of self-examination" and she says "with practice, the examination of the consciousness teaches us how to discern the movements of the spirit in our heart," and she calls this "discernment the spirits." Let's think clearly here....as a Christian, are we supposed to look INWARD to OUR hearts? NO! What does God's Word say about OUR hearts? Jeremiah 17:9 says the heart is deceitful above all things and desperately wicked. Proverbs says for us to ask GOD to search our hearts, not OURSELVES!
• Then, she endorses St. John of the Cross (p. 124), a Christian "mystic" from the 1500s and a modern day contemplative. Should you trust that he is a good resource?
• Henry Nouwen wrote the forward to her book. Do you even know who he is and can you trust him blindly? He is a Dutch Catholic Priest and father of the contemplative movement. If you are not familiar with this movement, you could possibly be influenced by it and be unaware of its effects on your belief system.