Part I. Ancient Traditions: Jhāna and Yogāvacara
2. The First Rūpa Jhāna: Attention, Vitakka, and Vicāra
3. The Second Rūpa Jhāna: Pīti, Energization
4. The Third Rūpa Jhāna, "Fully Conscious"
5. The Fourth Rūpa Jhāna: Upekkhā
6. Summary of the Four Rūpa Jhānas
7. Twilight Language, Syllables, and Yantra
8. The First Arūpa Jhāna: Infinity of Space
9. The Second Arūpa Jhāna: Infinity of Consciousness
10. The Third Arūpa Jhāna: Nothingness
11. The Fourth Arūpa Jhāna: Neither Perception nor Non-Perception
Part II. Modern Neuroscience, Consciousness, and an Ancient Path
12. Neuroscience of the Jhānas
