Well, without referring back to my notes, I'll give you a bit from memory...
[BIBLE]Genesis 1:1[/BIBLE]
God created the heavens & the earth, but in verse 2, they are formless & void. We conclude from this that He probably caused to come into being all the raw materials which were required to form creation (I'm paraphrasing here, please bear with me!), but hadn't yet ordered them into any shape or form.
Looking at the Hebrew words for formless & void, we see various meanings, including empty, without form, chaotic etc (doing this from memory!) By eliminating such words which can't apply, such as choatic (God is a God of order, not chaos - He was never not in control), we can determine that the words mean "without form" & "empty".
We then looked at a scientific essay which stated that all matter has form only when forces are applied to it, and without forces, even light has no form. So we take this to mean that there were not yet any forces in this brand new universe. Without form is an impossible thing to comprehend, but the closest we can get is to view everything in the universe as like a liquid, like water.
The word associated with hovering or moving over the waters (Spirit of God), has connatations of an eagle or a hen brooding over her chicks. It is a word which implies action, movement, energy, or vibration. Vibration is a force, and it is possible that it was this action by the Spirit of God which introduced forces & energy to the new universe, and hence allowed matter to take form, including light (which is, of course the very next thing mentioned).
I'm not sure what you mean by the deep, but we looked at the waters, and how God separated them and placed the expanse of heaven (or sky) between the waters below & the waters above. The waters below clearly mean the oceans on the earth, since He goes on to control & name them as such. The waters above are the subject of debate, but since we can see that He placed the sun, moon & stars in the expanse, this expanse can only be what we call space. Therefore, these waters above must be beyond the limit of what we regard as the universe.
(This is pure speculation on my part, and not something discussed as yet on the course, but if God formed all life on earth out of these "formless" waters below, and we know from Rev that He will fashion a new Heaven & a new Earth, maybe these waters above are what He has reserved in order to make things new? Just a thought.)
We also looked at how the word used to describe the creation of the expanse, is the same word used for beating out a sheet of metal. In fact that is the meaning EVERY other time the word (raqia, iirc) is used in Scripture. When you then look at just how many times it is stated that God "stretched out the heavens" (I spent just 10 minutes looking a few refs up, and came up with 6 separate verses saying this exact thing), and we get a picture of God forming something 2 dimensional, and then stretching it out to form the expanse of space. (Another bit of speculation by me, but I can see how that would cause the effect we see of the universe expanding (or having been expanded). I can also see that if He put the stars in place, and then stretched the Heavens out, that the light we see from stars that are now "billions of light years away", actually started very close to us, and would not have taken all that time to reach us after all. But who knows, that's me speculating, but maybe we'll cover that later...)
What I'm really loving about the course, is how much we can learn of the nature of God by studying these "apparantly" simple verses. How all the words used imply a loving, involved nature; how He has supreme authority over ALL creation - controlling it, forming it, distinguishing one element from another, naming & blessing His works. I have just been doing a lot of cross referencing, and it's staggering to see just how many times God is referred to as the Creator of the heavens & the earth, the Creator of all things, the One who placed the stars in the heavens & named every one...You get the picture. It's so often the first thing the writer mentions about Him, and the most awe-filled way of giving Him praise & glory. The verses then go on to mention how He is our great deliverer, or strength, or comfort...Take away the Creator bit, then what does that say about where our help comes from?
The teacher said yesterday that the most important thing to come from the study, is to know more of God, and to fall in love with Him, and I'm certainly experiencing that! I feel like my eyes are opening again - and it's all so obvious! How come everyone doesn't get it?

(I know the answer to that question, it's rhetorical

)
Hope that helps - sorry it's longer than I thought it would be! It's just all so fascinating, and I thought you'd appreciate it!