During my college days, I got a chance to interact with a yoga instructor. So, I asked him why did he wanted to become one. He told that he was suffering from a respiratory disease since he was 7 years old and he recovered from it through Yoga practices. Unable to continue school due to the ailment and doing yoga everyday, he learnt so much about it that he started to teach people.

That is where real entrepreneurship steps in. It always starts with a problem(pain) and a story(purpose) behind that. And the purpose becomes the vision of the startup. I had observed this from many startup founders. Few were really inspiring too. Will post them along.