Let The Mind Land Gently Meditation

Emotional mastery does not mean you are never going to feel anything at all.
Emotional mastery, quite like Zen, is all about feeling. Being. Allowing the flow and still living in the flow.
Emotions, when left to flounder, simply go amiss. In the unaware states of consciousness, emotions are simply shut down or numbed away by thousands of distractions available to us.
This is what the mind does when left to its own devices because it is designed to keep you alive.