Origin of the Spirit

I'd like to talk about the spirit a little bit. Mostly I'd like to hear what others believe about each spirit's origin. If you believe in a spirit, as most of us do, what is your take on each spirit's beginning?

My personal belief, based on what I have read in the Bible, and how personal revelation has come to me, is that the spirit existed before we had jars of clay to contain them. I came across a poem by William Wordsworth that summed up my thought better than I personally ever could in these lines:

Our birth is but a sleep and a forgetting:

The soul that rises with us, our life’s star,

Hath had elsewhere its setting, and cometh from afar:

Not in entire forgetfulness, and not in utter nakedness,

But trailing clouds of glory do we come from God who is our home.

(from "Ode on Intimations of Immortality"--William Wordsworth)

Although I know that Wordsworth's poem was not specifically about pre-existence, those lines ring true to me. I am also aware he uses the word soul instead of spirit, but I think he is calling what we call spirit a soul. Perhaps this is what Paul was talking about when he wrote:

"Now it is high time to awake out of sleep: for now is our salvation nearer than when we believed" (Rom. 13:11)

And what did he mean when he penned Hebrews 11:13-16? He spoke of being pilgrims and strangers on Earth, and a desire to find a country.(Greek word is patris meaning: a father-land)

Heb 11:13 "All these died according to faith, not having received the promises but beholding them afar off and saluting them and confessing that they are pilgrims and strangers on the earth."
Heb 11:14 "for men who acknowledge this make it manifest that they are seeking elsewhere a country of their own."

He hints that this father-land is not the place they were born into, but a heavenly one.

Heb 11:15-16 "And if they had cherished the remembrance of the country they had left, they would have found an opportunity to return; (16) but, as it is, we see them eager for a better land, that is to say, a heavenly one. For this reason God is not ashamed to be called their God, for He has now prepared a city for them."

In the Old Testament, we read that "... the dust returneth to the earth as it was, And the spirit returneth to God who gave it." --Ecc 12:7

I believe when the Bible speaks of the fall of Adam, it speaks about each and every one of our spirits. We all chose the Tree of Knowledge of Good and Evil. I don't think DNA has anything to do with it. Our present journey through material life is of our own choosing, not the choice of one man in a place in time. Recall that the Jews still call Heaven Gan Eden. The place where man fell is the same place men should aspire to return.

Any thoughts?

Blessings