"The soul is undergoing a dream from which it must awake. This dream represents our association and identification with the world. The fact that it is described as being a dream means that whatever is in it has to be false. Nothing in a dream can be true. Waking up from that dream is the ultimate goal, Self-realization." -- The main theme of "Yoga Vasistha"

"Just as when you are half awake and can see a dream, and know you are dreaming, and yet are apart from it, that is how God feels this universe. On one side he is awake, and on another side he is dreaming this universe. And that is how you should look upon this world. Then you will know why he created it, and will not ascribe these dream conditions to your soul. If you pass through a nightmare, you know that is no more than a bad dream. If you can live in the world in that consciousness, you will not suffer.
You won't mind then, because you will know you are dreaming. Do not pay undue attention to the passing scenes of life. You are the immortal self (consciousness) living only temporarily in a dream that is sometimes (imagined) to be a nightmare. That is the higher philosophy (and truth) of the mystics." -- Yogananda