Saiva Siddhanta Perumandram - Sivayanama - Guiding Tamilians [சமயம் சார்ந்த தத்துவம்]- God [பதி], So, Core Philosophy and Mantra of Saiva Siddhantham which deals with 3 cardinal concepts such as God [பதி], Soul[பசு] and Illusion [பாசம்]. via Thirumandhiram.ThiruGnana Ssambandhar announced to the world as Sivayanama is the ultimate thing on the research of Vedhas / Upanishad Philosophical conclusion.