god is fundamental origin of universe

I was on the top (12th) floor of my dormitory overlooking the city and was asking myself some hard questions.
I have come across these before, questions like "why should we pursue our own happiness?" and "How is meaning derived?", and they resulted in theories like GLD. [Goal, Logic, Data, there should be a post about it somewhere].
Today was about the same.
First I questioned whether God existed. Mostly I blame these times on a tired mind. And I realized that my doubt sprung from exhaustion, from physiological effects and/or emotions. I looked to my mind and remembered that everything I have thought about, all my searching and questioning God, has pointed towards God (well, not every time. But most of these times are resolved later on, or I simply am not done with those issues yet). So I remembered that God existed and via top-down processing, all the promises like his love for me.
Second, however, I questioned how God could fufill me. See, God is great and awesome, and he has designed us so that everything about him gives us pleasure. But why should we seek our own pleasure? Plus, our desires can actually be changed. A Christian undergoes a lifelong process of being transformed into the image of Christ. So really, can that be our reason to live? That is only a feeling.
So I thought about God, and the fact that no matter how I feel, he DOES exist, and I can trust in that. But still, how does the creator of the universe help me be fufilled? He is only a great, massive reality. Then again, he is more. He is a personal being, like a spouse, friend, brother, sister, father, or mother. Humans were created to crave relationships. And we are, but what good is that? Could we have instead been created for business contracts?
No, that would not work. So I began to question: what is the greatest, fundamental part of the universe. And then I realized that God is not jsut a great reality, and he is not just the meaning of the universe, he IS the universe, or rather, he is bigger than the universe.
Do NOT misinterpret this. I am not a cosmic humanist beleiving that we are all part of the great universe which is god, or a humanist believing that we and everything around us are all Gods. For the creator is greater than his works, God is greater than the universe.
What is that fundamental, dense, tangible thing of fufillment that I seek? God, and none other. The universe does not contain God, God is the origin and foundation of everything, the central strength from which everything was created. "For from him and through him and to him are all things. To him be the glory forever, Amen." Romans 11:36.

For other posts like this one, see GLD, Good is God, and perhaps some others.