It's a secret

If I told you, would you tell?
If I whispered it, would you yell?
This is me imprisoned in hell,
What is this dream that I want to dwell?

Loyalty has me caged, 
Priorities has me tamed,
If I escape, I'll be shamed,
By those who shall not be named,

My head's plunging into darkness,
In this nightmare I stay restless,
My lips are sealed before I make a mess,
Will I ever pass the test?