A comfort zone is an illusion
You can never be inert as without motion there is no life so if you do not go forward and leave your comfort zone you will regress and that regression will negatively impact every area of your life.
Progress,achievement and fulfillment are found when you do that which is uncomfortable,positive but uncomfortable

Focusing on G-D is the key to never ending growth because you will never reach or be G-D so there is never a time to say" I have done enough", "there is no more room to grow "as long as you are"pursuing" G-D you are always growing and shattering your limitations along the way to your best life