i need help with analyzing wordsworths poem "Strange fits of passion have i known". I need to know what he is doing in the poem and why. please help!

He's going to his girlfriend's house, and he starts imagining things-- what if she's died? He's doing this because he has equated the bright moon with the woman he loves.

pam

"Strange Fits of Passion Have I Known"
by: William Wordsworth

Strange fits of passion have I known:
And I will dare to tell,
But in the lover's ear alone,
What once to me befell.

When she I loved looked every day
Fresh as a rose in June,
I to her cottage bent my way,
Beneath an evening-moon.

Upon the moon I fixed my eye,
All over the wide lea;
With quickening pace my horse drew nigh
Those paths so dear to me.

And now we reached the orchard-plot;
And, as we climbed the hill,
The sinking moon to Lucy's cot
Came near, and nearer still.

In one of those sweet dreams I slept,
Kind Nature's gentlest boon!
And all the while my eye I kept
On the descending moon.

My horse moved on; hoof after hoof
He raised, and never stopped:
When down behind the cottage roof,
At once, the bright moon dropped.

What fond and wayward thoughts will slide
Into a Lover's head!
"O mercy!" to myself I cried,
"If Lucy hould be dead!"