Movie: The fourth passenger

It came up in silence,
When, tired of the troubles and wanderings,
Suddenly managed to forget me
In an empty, closed space.
When reality is forgotten,
I will gave fire fantasy
But hid from everyone I have the impulse,
Fearing to frighten away the dream and jinx it.
Creating my own ideal,
For cute image by becoming the answer,
The reason was clearly understood
What is not such in this world.
But I believe in way I live,
And impossible to contact!
And you're exactly
I came up with was!