I
Karma
I believe in Karma, the concept of Hindu spirituality, that says that the inevitable consequences of our deeds, good or bad, rebound on us in this life only, sooner or later. This may be a bit difficult to understand for a Western audience. Basically, it means that if you are good to people, the world will be good to you; if you harm others, fate will inevitably harm you far more.
We are perplexed when we see virtuous people coming to grief in life. Such instances shake our belief in the moral path encouraged by society and ordained by religion. But adversity need not be bad always; sometimes it may bring about a much needed catharsis, a purging of emotions, memories, attitudes that would otherwise have blighted our happiness. And, as Nicomachean Ethics propounds, adversity may also ennoble us, help us evolve into better human beings. Indeed, it does that more often than we realise.