Sometimes life really makes no sense. That sense-making habit we employ vanishes in an instant. You are left with Silence & Mystery.
Quoting lyrics from my own song:
"There's a sadness in the world, a madness in the world, there is no bottom to the well, there is no answer you can tell."
So yeah, the outer limits of our Human world. Madness and sadness are those colorful monsters that frolic in the waves beyond the known realms, as illustrated on those old navigation maps.
I suppose we haven't really lived until that madness and sadness find a place deep inside of us. And then, we carry on, we greet a new day, as best we can, knowing that any ordinary day, can be the last.