Another english poem!

I imagine you, my son,
during the days that will come...
how's gonna be the sound of your voice?...
will I be able to guide your choices?...

I'm afraid to tell you: life
is not that great trip we'd like...
sometimes the food we need is just hope,
and sometimes the lady is not at home;

we knock on the door in vain...
but not everything is pain:
you will find a winter's fire, I'm sure;
be calm: almost everybody does...

don't get fearful, I'll be right here;
but not forever, my son... sleep.