What you do is you take lines from different poems (or different parts of the same poem) and rearrange them to make a different one, like so;
----------------------------------
The grieved are many, I am told; (Dickinson)
So sad, so fresh, the days that are no more. (Tennyson)
Deep as first love, and wild with all regret; (Tennyson)
While the Weary Blues echoed through his head. (Hughes)
----------------------------------
The second day of mourning is always grey, (Gaston)
For all that is done and said. (Yeats)
He then becomes a man of woe; (Blake)
And slept like a rock or a man that's dead. (Hughes)
No man is an island. (Donne)
