For, though their currents yield return to none,
What shall my west hurt me? As west and east
In all flat maps (and I am one) are one,
So death doth touch the resurrection.
Is the Pacific Sea my home? Or are
The eastern riches? Is Jerusalem?
Anyan, and Magellan, and Gibraltar,
All straits, and none but straits, are ways to them,
Whether where Japhet dwelt, or Cham, or Shem.
We think that Paradise and Calvary,
Christ's cross, and Adam's tree, stood in one place;
Look, Lord, and find both Adams met in me;
As the first Adam's sweat surrounds my face,
May the last Adam's blood my soul embrace.
So, in his purple wrapp'd, receive me, Lord;
By these his thorns, give me his other crown;
A reference to Genesis 3:19: 
 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return." 
 For Donne the sweat represents his earthly life and its trials, as first experienced by Adam.
Hym To God My God In My Sickness