The four philosophical Elements are what comprise all physical aspects of Creation. They are Fire, Water, Air, and Earth. These Four Elements arise from the Trinity of the three philosophical Principles of Vehicle Vibrations Springer Nature Link The Tongue as a Gateway to Voice, Resonance, Style, and Intelligibility Vowel Wikipedia Frontiers State dependent vagus nerve stimulation for targeted plasticity therapy: challenges and considerations Working principle of an electronic tongue system: Physical, chemical Download Scientific Diagram