My heart sighs and weeps...

What lips my lips have kissed where and why,
I have forgotten what arms have lain under my head till morning
But the rain is full of ghosts tonight, that tap and sigh
Upon the glass and listen for reply,
And in my heart there stirs a quiet pain
For unremembered noone again will turn to me at midnight with a cry.
And in winter stands the lonely tree,
Nor knows what birds have vanished one by one,
Yet knows its tree branch more silent than before:
I cannot say what lovers have come and gone,
I only know that summer sang in me
A little while, that in me sings no more