The Threshold of the Spiritual World (1922)
GA 17

Table of Contents
- Concerning the Reliance which may be placed on Thinking; the Nature of the Thinking Soul; and of Meditation
- Concerning Knowledge of the Spiritual World
- Concerning Man's Etheric Body and the Elemental World
- Summary of the Foregoing
- Concerning Reincarnation and Karma; Man's Astral Body and the Spiritual World; and Ahrimanic Beings
- Concerning the Astral Body and the Luciferic Beings; and the Nature of the Etheric Body
- Summary of the Foregoing
- Concerning the Guardian of the Threshold and some Peculiarities of Clairvoyant Consciousness
- Concerning the Ego-Feeling and the Human Soul's Capacity for Love; and the Relation of these to the Elemental World
- Concerning the Boundary between the Physical World and Supersensible Worlds
- Concerning Beings of the Spirit-Worlds
- Concerning Spiritual Cosmic Beings
- The First Beginnings of Man's Physical Body
- Concerning Man's Real Ego
- Summary of Part of the Foregoing
- Remarks on the Connection of what is described in this Book with the Accounts given in my Books Theosophy and Occult Science