Tarantula

Down in the shadows of your deepest secrets
I sleep next to the precepts you hold most dear
Your heart is in my province hour upon hour
I shiver when you feel the cold,
Everything you say I hear
Like a bomb and its fuse,
We bring bright light
But I could be a devil to you
I could bite like a tarantula
Right through the skin
And leave my poison dream

Deliciously Unsuspecting
Protecting you from all harm
Except perhaps from reasoning