Love. A four letter word that could take someone and drag them to hell or give them something from their literal version of Heaven. To me, heaven is like a wet dream, you'll have to wake up sooner or later and realize it'll never happen.
Love exists only in your dreams.
Scrum; A different letter word except this one I understand; I apply not just to the sport I love but to my personal life: Transparency, Inspection and Adaptation. The 3 pillars of upholding every implementation of empirical process control. Basically what helps is to control the unexpected.
I don't expect the unexpected because I control everything.