Theory:

When I set out for Lyonnesse
A hundred miles away,
The rime was on the spray;
And starlight lit my lonesomeness
When I set out for Lyonnesse
A hundred miles away.

What would bechance at Lyonnesse
While I should sojourn there,
No prophet durst declare;
Nor did the wisest wizard guess
What would bechance at Lyonnesse
While I should sojourn there.

When I returned from Lyonnesse
With magic in my eyes,
All marked with mute surmise
My radiance rare and fathomless,
When I returned from Lyonnesse
With magic in my eyes.
                                           ~Thomas Hardy
Reference:
National Council of Educational Research and Training (2008). Honeydew. When I set out for Layonnesse - Thomas Hardy (pp. 105 - 106). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.