18 Sciences of the Philosophia Perennis
The 18 varieties of Knowledge ( Vidya ) are all the gross manifestations of Tantra.
Everything has been reduced to the biune principles of Consciousness and Force and this Union of Being and Becoming is the Universe.
The 18 Vidyas ( types of Knowledge) are
The Six Auxiliary Sciences – Vedanga Sastras ( Astrophysics, Kalpa, Nirukta, Phonetics, Grammar, Poetics)
The Six Main Sciences – The Four Vedas – ( Rik, Sama, Yajus & Atharva ) –
Poorva Meemamsa This deals with Karma Kanda
Nyaya Shastra Logic
Mythology – The 18 Treatises of Mythology
Ethics – The Science of Character
Ayurveda – The Science of Medicine
Dhanur Veda – Archery
Gandharva Veda Musicology
Artha Sastra Economics
The six auxiliary sciences have been defined as Apara Vidya ( Relative Knowledge ).
The six main sciences as they deal with the Absolute have been defined as Para Vidya ( Absolute Knowledge ).
Absolute Knowledge and Relative Knowledge together constitute the supreme knowledge.
Integral Knowledge is the confluence of Absolute, Relative and Transcendental knowledge ( Sujnana, Vijnana & Prajnana ).
Vijnana – Relative Knowledge –
Knowledge of Relative Being is Physical Science. All scientific knowledge is relative
Sujnana – Absolute Knowledge. Knowledge of the Absolute; knowledge philosophic.