Meditation Essentials has a direct progression and sequence.
For Beginning Here and Now, study whatever your heart pulls you to.
For Beginning Here and Now, how about the following psychological teachings? (not necessarily in this order):
- Awakening the Seed
- Belief and Faith
- Knowledge and Being
- Consciousness
- Four Ways of Spiritual Life
- Human Machine
- Three Brains and Five Centers
- Three Minds in Conflict