Nature isn't the benevolent loving motherly figure that it is made out to be. Nature is harsh, ever changing and never predictable. It keeps throwing challenges at the creatures who inhabit it. So, there is a constant struggle for existence. Only the fittest survive. By the fittest, I do not refer to the one with the most potential or the one with superiority. Dinosaurs were big, superior and powerful. But, they were wiped out. Roaches and bugs survived - through millions of years. By their sheer ability to adapt.
Adapt. That is the key word. The ability to adjust to Change that is constantly occurring in Nature. And, this theory of Darwin isn't limited only to classical Evolution as it is studied. It applies to us, to our everyday lives as well.
More often than not, it so happens that things do not go according to our plans. Murphy rules and all that could possibly go wrong, will. In this kind of a 'race' which is unfair, where some are having it easy only because they haven't had obstacles in their path; it is but natural that the guy doing the hurdles race gets disheartened. But, in this kind of a hostile environment, the true survivor is the one who can adapt to this situation the soonest. Who can take in his stride the situation he is in and try to make the most of it. Who can control his mind and not brood over what went by but focus on what lies ahead.
And, as Martina Navratilova said, "The moment of success is too brief to live for it and it alone". Life is long and, in the long run, it always evens out.
I know this might be a little preachy, and, is surely easier said than done, but I have my reasons for putting it up.