Sehnsucht und Zufall

Odd that my dearest friend would say that the German word she loved the most  and believes to be unique to this tongue is "Sehnsucht" (best translation: longing), for I've just read an obituary for Jacques Derrida, in which "longing" was a main theme, connected with debt and death. And this is where the "Zufall/ coincidence" falls in, for when I was staying at my friend's in Paris and mentioned the name Derrida, her mother told me that she had been working as a nurse in the hospital where Derrida died and did remember his death.