Discover Your Default Mental State
Every single human mind is stable and calm from the time of the birth. It is only because we make a bad habit of associating our daily observations with unnecessary emotions that we begin to experience emotional turmoil. You must be aware that nothing external to your mind can impact your mind.
Your mind is always stable and calm in its original state. Why? The question itself cannot be defined.
We have the stable and calm mind by default so the question cannot be defined.