Instead of holding anything medical, This person holds only a screwdriver, But the screwdriver is not really a screwdriver, He only has a phonebox, Which is the reason why he can travel, Who is that?

You can't visit a concert, a theme park, a museum, without this. If you try to enter without this, you might get one but you won't be happy.

What is known to be able to make two people out of one?

I shimmer where your longing leads, A promise born of burning needs. I paint you gifts you cannot claim, A distant pool without a name. You chase me, though I never stay, I live in heat, then fade away.

Shake me, change me, lend me, tie me. Near things are at me. If I feed you, don't bite me.