When you have anger, or resentment, or bitterness, or anything that seems the opposite of His peace, it feels as if He is not present. This is completely false. It feels as if He is not present, because you self judge these "non peaceful" feelings. It is your self judgment which appears to cut you off from God, not the anger of the bitterness itself. He is All and He is present within All, including your "negative" feelings and thoughts. Don't fight against or self judge that which you don't like. Know that He is already there in the middle of it.