Instincts Unchecked

I am filled with rage, and I am filled with light,
My honour sinks and rises, climbs and falls,
My heart is open wide, my heart builds walls,
The garden blooms in beauty, dies of blight,
I yearn to make my choices, wrong and right,
I rest contentedly, I pace these halls
Practising silence and mallard duck calls,
And promising you safety, but I bite.

You won't know what you should expect from me,
And I won't know it either. I expect
We'll live in terror, my instincts unchecked,
Your fears confirmed by my strange contumely.
Regret comes cheap, costs plenty, and is free.
We'll know tranquillity, and peace is wrecked.