@stefano This might be clang association, but reading it, these verses came to my mind directly.

.......
"We are going
Heaven knows where we are going
We'll know we're there

We will get there
Heaven knows how we will get there
We know we will
It will be hard, we know
And the road will be muddy and rough
But we'll get there
Heaven knows how we will get there
We know we will"
.......