Harmony or balance? Which one is dominating your life right now?
Now going back to Jeff Bezos and now Elon Musk, both of them say and other leaders all say and come back to this, do what you are passionate about because I believe that the more you do what you are passionate about you will upgrade to excellence in passion or some quote that talks of excellence in talent. Passion and following your passion according to leaders is long term sustainability and satisfaction.