As you abide in the 'I am' for a longer time you shall also realize the state of 'I am not' or there will be a state of 'knowing' and 'not- knowing'. Both these states are states of consciousness in its purity; they are the very beginnings of duality. The very arrival of the concept 'I am' implies the 'I am not' hidden in it or 'knowing' has 'not- knowing' implied in it, they are opposites, they are pairs and always go together and are impossible to separate. But you are the Absolute which transcends both of them; you are a witness to both these states, they have only appeared on you, they never belonged to you and are illusory.