"It may be hard for an egg to turn into a bird: it would be a jolly sight harder for it to learn to fly while remaining an egg. We are like eggs at present. And you cannot go on indefinitely being just an ordinary, decent egg. We must be hatched or go bad"

This quote by C.S. Lewis is a metaphor for the human condition. He is stating that it is difficult for a person to change and become something brand-new, simply as it is challenging for an egg to turn into a bird. He is suggesting that we should take risks and break out of our comfort zones in order to grow and establish. He is also saying that if we stay in our convenience zone, we will not be able to reach our full capacity. We must take risks and want to change in order to reach our objectives. He is stating that we must be willing to take risks and break out of our convenience zone in order to reach our complete potential. He is suggesting that if we stay in our convenience zone, we will not be able to reach our full potential. He is encouraging us to take threats and want to alter in order to reach our objectives.