Isn't it amazing how this entire world is governed by symmetry? Where there is light, there is dark too, we see shadows only in the presence of light. Where there is GOOD, there is BAD too - I do believe in GOD and this makes me believe in the existence of DEMONs too!!!(It sounds like Newton's third law of motion to me :P) However, with great power comes great responsibility and this attracts greater danger from the evil.
This keeps the balance in nature they say, but I don't really see the need to have a balance. Yet, who am I to question the almighty, the creator of all?? So, let me put it in a different way, just so that it sounds more diplomatic - Well, I think we have this kind of local imbalance or asymmetry, leading to global balance, to just make us realize the value of the GOOD!!
However, the examples that I have given and am about to give might not directly give us a view of symmetry, but you have to dig deeper into it, in order to understand it.
Anyways, coming back to realizing values, we only feel the need to see light, when we want to come out of darkness! If light and only light were to be present all the time, we would not even have realized that something so exists and we would have probably taken it for granted. Similarly, when people live in complete darkness, they never seem to know that there is something called light, which would get them out of the dark!! A good example are the elephants tied up in the temples using flimsy ropes. They grow in belief that they can't free themselves, thus, unaware of their actual strength, they never do. Now, if we were to be in a situation like that, it wouldn't be that nice, would it??
We have the deserts and the ice;
The elephants and the mice,
The mountains and the seas;
The blue whales and the bumble bees!
Living among the extremes, that's the beauty of life, the adventure! Imagine if everything was the same, how boring our lives would be; nothing would've had it's own significance and beauty. There has to be something which makes us stand out in the crowd, and that something is what marks our individuality and gives us some value.
The riches and the poor might not have felt so if it weren't for each other. There would be nothing to look up to, and nothing to fear, if it weren't for this difference. Of course, there is a limit to this difference. The same analogy anyhow, may be applied for the GOOD and the BAD too, though it wouldn't be as simple, since there is a very thin line dividing them.
We feel joy only when we win over pain.
After every loss comes a small gain.
Fail to see it, you might;
But it's just like a day, after every night!
We are mere humans, we might not be able to see anything positive all the time, in negative circumstances. It's all in our perceptions, but, if we do see through all, then we will definitely know and realize that all life and matter revolves around symmetry.
Symmetry in imbalance need not always be found in different objects. It may reside in a single object at different times, or sometimes even simultaneously!!
Consider a star (Sun, for example), which shines bright; for everyone and everything it is the main source of illumination! But, as it dies, it turns into a black hole, gulping down every bit of matter or even light, in it's vicinity! Something which will help us understand this more clearly are the trees that surround us. They are known to behave differently in the morning from how they behave at night. Human beings are no less. Consider Einstein, one of the greatest and most intriguing brains in the history of science. He himself was known to have a bad memory and even common sense. (No offense! (I am one of his fans ;) )
All this just shows how beautifully GOD has brought in symmetry in every aspect of life. It is simply amazing!! WOW!!! This needs to be appreciated indeed!
Every rose comes with thorns,
Every decision has it's pros and cons!!
It is all intertwined so beautifully, and it is all above human understanding. The question, as to why it is so, is still unanswered. I think, some questions are meant to be left unanswered, because the more we try to figure it out, the more complex it grows. It's UNBELIEVABLE and MIND-BLOWING. It's simply BRILLIANT! I think it's best that I end it here, and leave the question open to others. Probably someone might just come up with a reasonable explanation! ALL THE BEST :)