I never know who I am

All the books I read
are full of dazzling heroes,
always sure of themselves.
I die with envy of them;
and in films full of wind and bullets,
I goggle at the cowboys,
I even admire the horses.

But when I call for a hero,
out comes my lazy old self;
so I never know who I am,
nor how many I am or will be.
I'd love to be able to touch a bell
and summon the real me,
because if I really need myself,
I mustn't disappear.

While I am writing, I'm far away;
and when I come back, I've gone.
I would like to know if others
go through the same things that I do,
have as many selves as I have,
and see themselves similarly;
and when I've exhausted this problem,
I'm going to study so hard
that when I explain myself,
I'll be talking geography.

We are many, 
Pablo Neruda