Remember always, existence functions through opposites, it can only function through opposites. It is through the opposites that existence creates momentum, dynamism. It is by polar opposites that the existence creates a dialectical process; otherwise there would be no dialectical process.
Just think: a world only of men and no women – it would not be rich, it would be very very flat; or a world where only women exist – that too would be ugly, that too would be very very stagnant. From where will the movement come? The opposite is the challenge, and because of the challenge the movement arises. Because of the challenge you cannot become asleep, you become awakened.