Twin-Growth

I would not wish thee other than thou art;
I love thee, love, so well in every part,
That had I power to change thee
In form or face or mind,
I could not find
The heart to re-arrange thee.

For we were made to suit each other, sweet,
Apart, uneven, but when join'd, complete,
With powers and failings matching
In each as strictly well
As in some shell
The sharp teeth interlatching.

And so I would not have thee change, for fear
The valves might open and gape a little, dear.
But we are like the weather
A-changing every day,
And so I pray
That we may change together --

Change like twin shells, that nothing can estrange,
But ever changing never feel a change:
So grow for one another
That each may aye present
The complement
That doth fulfil the other.