eugenelester: Why the physical Universe?
When the eternal God our creator decided and planned (using his word(s)) to create the concept of intelligent life on a ‘lower’ scale, below the heaven of his abode, he decided to create a discrete/relative time dimension so he could easily manage, observe, alter at will and 'live' within it. He wanted the physical universe as a place 'to be' and share himself with what he would create in it. After time was introduced (from the beginning with the words/thought/power of God) space became its byproduct. Originally dark space, he then filled it in many places with light energy and thus matter became its byproduct. The finite universe, the 3-dimensions of space and relative discrete time was now created and ready for 'living' matter and beings like us earthlings.
APAK
That's a good start! ;)