The One Whom You Cannot See

I'm here, but you can't see me. I'm always in your presence, But-- I only come out when I sense the need. I'm in the midst of the stillness of the night, Especially when all is asleep and in bed. I'm only heard and never seen, Besides-- Being jostled away is a dread. I rest gently on a baby's lips, As he sucks on his bottle. But-- I'm deferred and set aside when my brother arrives, He breaks all consciousness As peace and calmness slowly become obsolete. I try so hard to stay around But-- After disappointment, my smile is averted to a frown. Why should I stay here? I'm no longer needed, I guess I'll just wander off until my brother's task is completed. You're probably curious of who i just might be, For I am SILENCE, The one whom you cannot see...