As it turns out. Our brains are continually imagining futures that will meet our needs and things that could stand in the way of them. And sometimes any of those needs may be in conflict with each other.

Mindfulness is a practice of observing our mind's activity and is the antidote to worry.

We worry because our pre-conditioned mind cannot be left alone. Like a motor that cannot be switched off, the mind keeps running, performing background thinking at all times.