What do you write on those days you have nothing to say?

I do feel, I feel so much but coherence is at a great distance, 

words are not my enemy, but my mind never seems to stay.

I suffer nothing in particular, yet I suffer, 
or maybe I am fooling myself.
The mind is power, 
But I am power,
Yet all I feel is utter weakness. 
It is loss; like a mother loosing her child,
like a sister loosing her brother, 
like a man loosing his walking stick,
There is loss. 
But I feel I have everything.
Only that is true sadness.

- RMS.