It doesn't take $50,000 words (I'm adjusting for inflation, mind you) to understand the basic concepts of our seemingly insignificant existence. But people like using big words and lengthy explanations, because it makes us feel important.
Space is just a measurement between two objects. Time is just a measurement of change in objects. Matter/energy are simply, just the objects.
It would seem as if the three things have a Pythagorean relationship, and removing any one of the three causes reality to cease functioning. To illustrate this point: Space and time would mean nothing if there was no substance (matter/energy) to "feel" the effects of space and time. Without space, time and matter would be insignificant as everything would be one homogenous lump of infinitely dense material. Without time, space and matter would never change and everything would be in a "frozen" state, like a photograph.
Space time and matter must all exist simultaneously for anything in this universe to work. How would I explain all that to a medieval peasant? Easy:
"In the beginning [TIME] God created the heaven [SPACE] and the earth [MATTER/ENERGY]." - Genesis chapter 1, verse 1.
"Science" is a little late to the party. God already knew what he was talking about, even if we didn't. However, without a sentient observer, nothing really exists. But because we exist and can observe reality all around us, we know that none of these things are illusions. You can deny anything, except for the fact that you, in some form or fashion do indeed exist. We can both see a cup of water, because it exists, but disagree on whether or not it is half full or half empty.
Why do you exist? Or rather, why are you a sentient observer? Why do you think?
"I think, therefore I am." - René Descartes.
"And God said unto Moses, *I Am That I Am*: and he said, Thus shalt thou say unto the children of Israel, *I Am* hath sent me unto you." - Exodus chapter 3, verse 14.
Again, God is way ahead of the curve, because God created the curve. He thinks, therefore He is, and you exist because God created you in his "image and likeness". You are a sentient observer, because God is a sentient observer. That's why you exist and think.
The universe itself is a massive quantum computer. Guess who is at the controls? The whole is greater than the sum of its parts, and God is greater than the sum of the universe.