Do you think haiku should be written from personal experience only? This is a powerful haiku by Yosa Buson (1716-1784)
The sadness and grief is palpable and more so because the image of the man stepping on his dead wife's comb is such a small, domestic image, but one which explodes whit emotion the more we look at the other words in the haiku : the piercing cold, the previously shared comforting bedroom which is now a place of dark grief.
However Buson did not write this form personal experience. His own wife was still alive and well when he composed this haiku.
Does it matter? In my opinion, I don't think so. It's the finished haiku that matters, not the source of its inspiration.

I share Bee Jay's post