Analysis of Imitation

A dark unfathomed tide
Of interminable pride -
A mystery, and a dream,
Should my early life seem;
I say that dream was fraught
With a wild and waking thought
Of beings that have been,
Which my spirit hath not seen,
Had I let them pass me by,
With a dreaming eye!
Let none of earth inherit
That vision of my spirit;
Those thoughts I would control,
As a spell upon his soul:
For that bright hope at last
And that light time have past,
And my worldly rest hath gone
With a sigh as it passed on:
I care not though it perish
With a thought I then did cherish