A ‘jnani’ knows that he has realized when he recognizes his knowingness, which is the sense of ‘I am’. Right here and now you are in the realized state. But you try to judge it through desires and mind-concepts, hence your inability to apperceive it and abide in it. In the ‘jnani’ state, there is no need for anything, not even to know oneself. You are attached to the body-senses, therefore even though you may attain an age of hundred years, you still would crave for more years.