This subtle principle 'I am', which is subtler than the mind, has appeared on your True state. After it appeared it remained in a pure state for some time and then began the piling up of words, language and concepts. The 'I am' was now verbal and identified itself with body, you became 'so-and-so' living in this world as a person. Your mind developed and became a workshop of mischief, but the root cause was the 'I am'. Now you have come back to that 'I am', the primary mischief-monger, you meditate on it and realize its falseness and it disappears. You have now transcended the 'I am' so where is the question of any mischief?