BOOK I. THE PROBLEM OF UNION.
a. The higher and lower natures defined.
b. The obstacles and their removal considered.
c. A summation of the Raja Yoga system.
Topic: The versatile psychic nature.
BOOK II. THE STEPS TO UNION.
a. The five hindrances and their removal.
b. The eight means defined.
Topic: The means of attainment.
BOOK III. UNION ACHIEVED AND ITS RESULTS.
a. Meditation, and its stages.
b. Twenty-three results of meditation.
Topic: The powers of the soul.
BOOK IV. ILLUMINATION.
a. Consciousness and form.
b. Union or at-one-ment.
Topic: Isolated unity.