Etheric plane
- Aether (classical element)
- Aether theories
- Akashic records
- Alice Bailey
- Angels
- Annie Besant
- Assimilation (biology)
- Astral plane
- Buddhic plane
- Causal plane
- Charles Webster Leadbeater
- Clairvoyance
- Earth
- Earth's atmosphere
- Esoteric Christian
- Esoteric cosmology
- Ethereal Plane
- Ethernet
- Greek philosophy
- Hindu philosophy
- Luminiferous aether
- Madame Blavatsky
- Max Heindel
- Mental body
- Odic force
- Plane (cosmology)
- Prana
- Qi
- Rosicrucian Fellowship
- Rudolf Steiner
- Theosophical Society Adyar
- Theosophy (Blavatskian)
- Timeline of luminiferous aether
- Upanishads
- Walter John Kilner