"In the beginning was the Word, and the Word was with God, and the Word was God. He was with God in the beginning.
Through him all things were made; without him nothing was made that has been made. In him was life, and that life was the light of men. The light shines in the darkness, but the darkness has not understood it."
John 1 verses 1-5
Ok, I am done preaching, but I think this sums up pretty well what I think God must be (to really be God that is). You can look out at the universe before us, seemingly still expanding to the outer reaches of what we can see and even farther detect, and marvel at what *is*. But, you have to ask yourself "How did this come to be? Was there a beginning? Are there borders?"
Think for a moment what something outside the universe must be. Position is obviously nonsensical to ascribe to something outside the universe, as is size. Even the concept of "space" is a property of our universe, and time.
If the universe did have a beginning, if at one point it simply 'was' (talking about the universe not existing at a point in time is nonsensical) then it seems illogical by the standards of the universe for it just to start existing. If the universe was constructed it would have to have been by something outside the constrains of the creation, e.g. God.
Of course, this explanation has certain problems. For instance, the universe runs by cause and effect. The rules of the universe say that it cannot just start, it would need a cause to be an effect. However, without the universe there are no rules of logic. There is no time, there is no space, even the concept of existance needs to be thrown out the window. Trying to apply logic to something outside the universe is illogical.
So... thats it. If the universe just began at some point in time, then the "egg" could be thought of as something outside the realm of the universe. But this is a poor example because it attempts to put time and existance, elements of the universe, outside itself.