| Abhidamma-Pitaka |
| Abhinna |
| Abyssus |
| Achat |
| Adi-Buddha |
| Äon |
| Äromantie |
| Aesch Mezareph |
| Äther |
| Ätherialisation |
| Ätherius Society |
| Ätherleib |
| Agartha |
| Aiwaz |
| Ajna-Chakra |
| Akasha |
| Akasha-Chronik |
| Alaya |
| Albedo |
| Alchemie |
| Alchemie, chinesische |
| Alchemie, indische |
| Alchemie, jüdische |
| Alektryomantie |
| Alkahest |
| Allegro, John M. |
| Allgeist, Erdgeist |
| Almadel |
| Almadel Salomonis |
| Alma |
| Alphabete, magische |
| AASR |
| Amethyst |
| Amithaba |
| Amorc |
| Anagamin |
| Anahata-Chakra |
| Ananda |
| Ananda Marga |
| Anatta |
| Androgyn |
| Angriff, magischer |
| Anima mundi |
| Animismus |
| Animozentrik |
| Ankh |
| Antariska-Welt |
| Antaskarana |
| Anthropozentrik |
| Antichrist |
| Apollinaris |
| Aquamarin |
| Aradia |
| Aram Kurt |
| Arbatel |
| Archäus |
| Archeomètre |
| Arhat |
| Arithomantie |
| Arkandisziplin |
| Arkanum |
| Aromalampe |
| Aromatherapie |
| Arroya, Stephen |
| Arthur |
| Arupaloka |
| Arysavaka |
| Asana |
| Asijjah |
| Astanga-Yoga |
| Asterismus |
| Astral |
| Astralkörper |
| Astrareise, -projektion |
| Astralwelt, -ebene, -licht |
| Astroenergetik |
| Astroarchäologie |
| Astrologie, altamerikanische |
| Astrologie, chinesische |
| Astrologie, esoterische |
| Astrologie, indische |
| Astrologie, kabbalistische |
| Astrologie, klassische |
| Astrologie, moderne |
| Ashvagosha |
| Atemtherapie |
| Atiyoga |
| Atlantis |
| Atma |
| Atta |
| Auferstehung |
| Aura |
| Aurasomatherapie |
| Aureole |
| Auriculotherapie |
| Autogenes Training, AT |
| Autosuggestion |
| Avalokiteshvara |
| Avalon |
| Avatanshaka Sutra |
| Avatara |
| Avichi |
| Avidya |
| Ayahuaska |
| Ayurveda |
| Azaluth |
| Azoth |
|