A person may ask: "What is the sign that one is ready to awake from sleep?" It is this: When a person begins to think "all I have learnt and understood seems so unreal; there are some realities which I am vaguely aware of, and yet compared with them all I have studied and done seems to be of no account!" As the dawn comes after the night of darkness, so he sees light coming; but he has not yet seen the sun! He is only beginning to be awake.