Analysis of Over And Undone

IF one might hope that when we say farewell
To life, we two might but be one at last!
But we look back on a divided past,
And a divided future must foretell.
Apart we sowed the seed that flowers in hell,
The seed that blooms in heaven apart we cast:
See what remembrances my heart holds fast--
Ask your own heart what deeds you deem done well!

The memory I find my heaven in
Is that one hand-touch you regret as sin;
Your goodness, dear, that stood between us two
And made my hell, may make a heaven for you;
So evermore must lie our souls between
The kiss unkissed, the infinite might-have-been!