 These doctrines establish the basic principles for Mulla Sadra’s argument for the existence of God. There are many proofs for the existence of God because as Mulla Sadra says there are many signs that indicate Him and facets about Him (Mulla Sadra 2001–5, VI: 15). Kalam cosmological proofs began with the intuition of phenomenal existence requiring a cause; there was a creation which needed a cause to be. There had to be a reason why there was something rather than nothing. Avicenna’s famous proof for the Necessary Being began with the concept of existence, proceeded with a modal distinction between necessity and contingent, and arrived at the exigency of a Necessary Being. Avicenna himself called his argument the ‘proof of the veracious’ (burhan al-siddiqin) and his commentator Tusi provided a typology of three proofs for the existence of a Creator, which in turn are the kalam cosmological argument, the proof from motion that derives from Aristotle’s Physics, and the Avicennan ontological argument: